getTimestamp() + $datetime->getOffset(); } if ( $translate ) { return wp_date( $format, $datetime->getTimestamp() ); } return $datetime->format( $format ); } /** * Retrieves the current time based on specified type. * * The 'mysql' type will return the time in the format for MySQL DATETIME field. * The 'timestamp' type will return the current timestamp or a sum of timestamp * and timezone offset, depending on `$gmt`. * Other strings will be interpreted as PHP date formats (e.g. 'Y-m-d'). * * If $gmt is set to either '1' or 'true', then both types will use GMT time. * if $gmt is false, the output is adjusted with the GMT offset in the WordPress option. * * @since 1.0.0 * * @param string $type Type of time to retrieve. Accepts 'mysql', 'timestamp', * or PHP date format string (e.g. 'Y-m-d'). * @param int|bool $gmt Optional. Whether to use GMT timezone. Default false. * @return int|string Integer if $type is 'timestamp', string otherwise. */ function current_time( $type, $gmt = 0 ) { // Don't use non-GMT timestamp, unless you know the difference and really need to. if ( 'timestamp' === $type || 'U' === $type ) { return $gmt ? time() : time() + (int) ( get_option( 'gmt_offset' ) * HOUR_IN_SECONDS ); } if ( 'mysql' === $type ) { $type = 'Y-m-d H:i:s'; } $timezone = $gmt ? new DateTimeZone( 'UTC' ) : wp_timezone(); $datetime = new DateTime( 'now', $timezone ); return $datetime->format( $type ); } /** * Retrieves the current time as an object with the timezone from settings. * * @since 5.3.0 * * @return DateTimeImmutable Date and time object. */ function current_datetime() { return new DateTimeImmutable( 'now', wp_timezone() ); } /** * Retrieves the timezone from site settings as a string. * * Uses the `timezone_string` option to get a proper timezone if available, * otherwise falls back to an offset. * * @since 5.3.0 * * @return string PHP timezone string or a ±HH:MM offset. */ function wp_timezone_string() { $timezone_string = get_option( 'timezone_string' ); if ( $timezone_string ) { return $timezone_string; } $offset = (float) get_option( 'gmt_offset' ); $hours = (int) $offset; $minutes = ( $offset - $hours ); $sign = ( $offset < 0 ) ? '-' : '+'; $abs_hour = abs( $hours ); $abs_mins = abs( $minutes * 60 ); $tz_offset = sprintf( '%s%02d:%02d', $sign, $abs_hour, $abs_mins ); return $tz_offset; } /** * Retrieves the timezone from site settings as a `DateTimeZone` object. * * Timezone can be based on a PHP timezone string or a ±HH:MM offset. * * @since 5.3.0 * * @return DateTimeZone Timezone object. */ function wp_timezone() { return new DateTimeZone( wp_timezone_string() ); } /** * Retrieves the date in localized format, based on a sum of Unix timestamp and * timezone offset in seconds. * * If the locale specifies the locale month and weekday, then the locale will * take over the format for the date. If it isn't, then the date format string * will be used instead. * * Note that due to the way WP typically generates a sum of timestamp and offset * with `strtotime()`, it implies offset added at a _current_ time, not at the time * the timestamp represents. Storing such timestamps or calculating them differently * will lead to invalid output. * * @since 0.71 * @since 5.3.0 Converted into a wrapper for wp_date(). * * @global WP_Locale $wp_locale WordPress date and time locale object. * * @param string $format Format to display the date. * @param int|bool $timestamp_with_offset Optional. A sum of Unix timestamp and timezone offset * in seconds. Default false. * @param bool $gmt Optional. Whether to use GMT timezone. Only applies * if timestamp is not provided. Default false. * @return string The date, translated if locale specifies it. */ function date_i18n( $format, $timestamp_with_offset = false, $gmt = false ) { $timestamp = $timestamp_with_offset; // If timestamp is omitted it should be current time (summed with offset, unless `$gmt` is true). if ( ! is_numeric( $timestamp ) ) { $timestamp = current_time( 'timestamp', $gmt ); } /* * This is a legacy implementation quirk that the returned timestamp is also with offset. * Ideally this function should never be used to produce a timestamp. */ if ( 'U' === $format ) { $date = $timestamp; } elseif ( $gmt && false === $timestamp_with_offset ) { // Current time in UTC. $date = wp_date( $format, null, new DateTimeZone( 'UTC' ) ); } elseif ( false === $timestamp_with_offset ) { // Current time in site's timezone. $date = wp_date( $format ); } else { /* * Timestamp with offset is typically produced by a UTC `strtotime()` call on an input without timezone. * This is the best attempt to reverse that operation into a local time to use. */ $local_time = gmdate( 'Y-m-d H:i:s', $timestamp ); $timezone = wp_timezone(); $datetime = date_create( $local_time, $timezone ); $date = wp_date( $format, $datetime->getTimestamp(), $timezone ); } /** * Filters the date formatted based on the locale. * * @since 2.8.0 * * @param string $date Formatted date string. * @param string $format Format to display the date. * @param int $timestamp A sum of Unix timestamp and timezone offset in seconds. * Might be without offset if input omitted timestamp but requested GMT. * @param bool $gmt Whether to use GMT timezone. Only applies if timestamp was not provided. * Default false. */ $date = apply_filters( 'date_i18n', $date, $format, $timestamp, $gmt ); return $date; } /** * Retrieves the date, in localized format. * * This is a newer function, intended to replace `date_i18n()` without legacy quirks in it. * * Note that, unlike `date_i18n()`, this function accepts a true Unix timestamp, not summed * with timezone offset. * * @since 5.3.0 * * @param string $format PHP date format. * @param int $timestamp Optional. Unix timestamp. Defaults to current time. * @param DateTimeZone $timezone Optional. Timezone to output result in. Defaults to timezone * from site settings. * @return string|false The date, translated if locale specifies it. False on invalid timestamp input. */ function wp_date( $format, $timestamp = null, $timezone = null ) { global $wp_locale; if ( null === $timestamp ) { $timestamp = time(); } elseif ( ! is_numeric( $timestamp ) ) { return false; } if ( ! $timezone ) { $timezone = wp_timezone(); } $datetime = date_create( '@' . $timestamp ); $datetime->setTimezone( $timezone ); if ( empty( $wp_locale->month ) || empty( $wp_locale->weekday ) ) { $date = $datetime->format( $format ); } else { // We need to unpack shorthand `r` format because it has parts that might be localized. $format = preg_replace( '/(?get_month( $datetime->format( 'm' ) ); $weekday = $wp_locale->get_weekday( $datetime->format( 'w' ) ); for ( $i = 0; $i < $format_length; $i ++ ) { switch ( $format[ $i ] ) { case 'D': $new_format .= addcslashes( $wp_locale->get_weekday_abbrev( $weekday ), '\\A..Za..z' ); break; case 'F': $new_format .= addcslashes( $month, '\\A..Za..z' ); break; case 'l': $new_format .= addcslashes( $weekday, '\\A..Za..z' ); break; case 'M': $new_format .= addcslashes( $wp_locale->get_month_abbrev( $month ), '\\A..Za..z' ); break; case 'a': $new_format .= addcslashes( $wp_locale->get_meridiem( $datetime->format( 'a' ) ), '\\A..Za..z' ); break; case 'A': $new_format .= addcslashes( $wp_locale->get_meridiem( $datetime->format( 'A' ) ), '\\A..Za..z' ); break; case '\\': $new_format .= $format[ $i ]; // If character follows a slash, we add it without translating. if ( $i < $format_length ) { $new_format .= $format[ ++$i ]; } break; default: $new_format .= $format[ $i ]; break; } } $date = $datetime->format( $new_format ); $date = wp_maybe_decline_date( $date, $format ); } /** * Filters the date formatted based on the locale. * * @since 5.3.0 * * @param string $date Formatted date string. * @param string $format Format to display the date. * @param int $timestamp Unix timestamp. * @param DateTimeZone $timezone Timezone. * */ $date = apply_filters( 'wp_date', $date, $format, $timestamp, $timezone ); return $date; } /** * Determines if the date should be declined. * * If the locale specifies that month names require a genitive case in certain * formats (like 'j F Y'), the month name will be replaced with a correct form. * * @since 4.4.0 * @since 5.4.0 The `$format` parameter was added. * * @global WP_Locale $wp_locale WordPress date and time locale object. * * @param string $date Formatted date string. * @param string $format Optional. Date format to check. Default empty string. * @return string The date, declined if locale specifies it. */ function wp_maybe_decline_date( $date, $format = '' ) { global $wp_locale; // i18n functions are not available in SHORTINIT mode. if ( ! function_exists( '_x' ) ) { return $date; } /* * translators: If months in your language require a genitive case, * translate this to 'on'. Do not translate into your own language. */ if ( 'on' === _x( 'off', 'decline months names: on or off' ) ) { $months = $wp_locale->month; $months_genitive = $wp_locale->month_genitive; /* * Match a format like 'j F Y' or 'j. F' (day of the month, followed by month name) * and decline the month. */ if ( $format ) { $decline = preg_match( '#[dj]\.? F#', $format ); } else { // If the format is not passed, try to guess it from the date string. $decline = preg_match( '#\b\d{1,2}\.? [^\d ]+\b#u', $date ); } if ( $decline ) { foreach ( $months as $key => $month ) { $months[ $key ] = '# ' . preg_quote( $month, '#' ) . '\b#u'; } foreach ( $months_genitive as $key => $month ) { $months_genitive[ $key ] = ' ' . $month; } $date = preg_replace( $months, $months_genitive, $date ); } /* * Match a format like 'F jS' or 'F j' (month name, followed by day with an optional ordinal suffix) * and change it to declined 'j F'. */ if ( $format ) { $decline = preg_match( '#F [dj]#', $format ); } else { // If the format is not passed, try to guess it from the date string. $decline = preg_match( '#\b[^\d ]+ \d{1,2}(st|nd|rd|th)?\b#u', trim( $date ) ); } if ( $decline ) { foreach ( $months as $key => $month ) { $months[ $key ] = '#\b' . preg_quote( $month, '#' ) . ' (\d{1,2})(st|nd|rd|th)?([-–]\d{1,2})?(st|nd|rd|th)?\b#u'; } foreach ( $months_genitive as $key => $month ) { $months_genitive[ $key ] = '$1$3 ' . $month; } $date = preg_replace( $months, $months_genitive, $date ); } } // Used for locale-specific rules. $locale = get_locale(); if ( 'ca' === $locale ) { // " de abril| de agost| de octubre..." -> " d'abril| d'agost| d'octubre..." $date = preg_replace( '# de ([ao])#i', " d'\\1", $date ); } return $date; } /** * Convert float number to format based on the locale. * * @since 2.3.0 * * @global WP_Locale $wp_locale WordPress date and time locale object. * * @param float $number The number to convert based on locale. * @param int $decimals Optional. Precision of the number of decimal places. Default 0. * @return string Converted number in string format. */ function number_format_i18n( $number, $decimals = 0 ) { global $wp_locale; if ( isset( $wp_locale ) ) { $formatted = number_format( $number, absint( $decimals ), $wp_locale->number_format['decimal_point'], $wp_locale->number_format['thousands_sep'] ); } else { $formatted = number_format( $number, absint( $decimals ) ); } /** * Filters the number formatted based on the locale. * * @since 2.8.0 * @since 4.9.0 The `$number` and `$decimals` parameters were added. * * @param string $formatted Converted number in string format. * @param float $number The number to convert based on locale. * @param int $decimals Precision of the number of decimal places. */ return apply_filters( 'number_format_i18n', $formatted, $number, $decimals ); } /** * Convert number of bytes largest unit bytes will fit into. * * It is easier to read 1 KB than 1024 bytes and 1 MB than 1048576 bytes. Converts * number of bytes to human readable number by taking the number of that unit * that the bytes will go into it. Supports TB value. * * Please note that integers in PHP are limited to 32 bits, unless they are on * 64 bit architecture, then they have 64 bit size. If you need to place the * larger size then what PHP integer type will hold, then use a string. It will * be converted to a double, which should always have 64 bit length. * * Technically the correct unit names for powers of 1024 are KiB, MiB etc. * * @since 2.3.0 * * @param int|string $bytes Number of bytes. Note max integer size for integers. * @param int $decimals Optional. Precision of number of decimal places. Default 0. * @return string|false Number string on success, false on failure. */ function size_format( $bytes, $decimals = 0 ) { $quant = array( /* translators: Unit symbol for terabyte. */ _x( 'TB', 'unit symbol' ) => TB_IN_BYTES, /* translators: Unit symbol for gigabyte. */ _x( 'GB', 'unit symbol' ) => GB_IN_BYTES, /* translators: Unit symbol for megabyte. */ _x( 'MB', 'unit symbol' ) => MB_IN_BYTES, /* translators: Unit symbol for kilobyte. */ _x( 'KB', 'unit symbol' ) => KB_IN_BYTES, /* translators: Unit symbol for byte. */ _x( 'B', 'unit symbol' ) => 1, ); if ( 0 === $bytes ) { /* translators: Unit symbol for byte. */ return number_format_i18n( 0, $decimals ) . ' ' . _x( 'B', 'unit symbol' ); } foreach ( $quant as $unit => $mag ) { if ( doubleval( $bytes ) >= $mag ) { return number_format_i18n( $bytes / $mag, $decimals ) . ' ' . $unit; } } return false; } /** * Convert a duration to human readable format. * * @since 5.1.0 * * @param string $duration Duration will be in string format (HH:ii:ss) OR (ii:ss), * with a possible prepended negative sign (-). * @return string|false A human readable duration string, false on failure. */ function human_readable_duration( $duration = '' ) { if ( ( empty( $duration ) || ! is_string( $duration ) ) ) { return false; } $duration = trim( $duration ); // Remove prepended negative sign. if ( '-' === substr( $duration, 0, 1 ) ) { $duration = substr( $duration, 1 ); } // Extract duration parts. $duration_parts = array_reverse( explode( ':', $duration ) ); $duration_count = count( $duration_parts ); $hour = null; $minute = null; $second = null; if ( 3 === $duration_count ) { // Validate HH:ii:ss duration format. if ( ! ( (bool) preg_match( '/^([0-9]+):([0-5]?[0-9]):([0-5]?[0-9])$/', $duration ) ) ) { return false; } // Three parts: hours, minutes & seconds. list( $second, $minute, $hour ) = $duration_parts; } elseif ( 2 === $duration_count ) { // Validate ii:ss duration format. if ( ! ( (bool) preg_match( '/^([0-5]?[0-9]):([0-5]?[0-9])$/', $duration ) ) ) { return false; } // Two parts: minutes & seconds. list( $second, $minute ) = $duration_parts; } else { return false; } $human_readable_duration = array(); // Add the hour part to the string. if ( is_numeric( $hour ) ) { /* translators: %s: Time duration in hour or hours. */ $human_readable_duration[] = sprintf( _n( '%s hour', '%s hours', $hour ), (int) $hour ); } // Add the minute part to the string. if ( is_numeric( $minute ) ) { /* translators: %s: Time duration in minute or minutes. */ $human_readable_duration[] = sprintf( _n( '%s minute', '%s minutes', $minute ), (int) $minute ); } // Add the second part to the string. if ( is_numeric( $second ) ) { /* translators: %s: Time duration in second or seconds. */ $human_readable_duration[] = sprintf( _n( '%s second', '%s seconds', $second ), (int) $second ); } return implode( ', ', $human_readable_duration ); } /** * Get the week start and end from the datetime or date string from MySQL. * * @since 0.71 * * @param string $mysqlstring Date or datetime field type from MySQL. * @param int|string $start_of_week Optional. Start of the week as an integer. Default empty string. * @return array Keys are 'start' and 'end'. */ function get_weekstartend( $mysqlstring, $start_of_week = '' ) { // MySQL string year. $my = substr( $mysqlstring, 0, 4 ); // MySQL string month. $mm = substr( $mysqlstring, 8, 2 ); // MySQL string day. $md = substr( $mysqlstring, 5, 2 ); // The timestamp for MySQL string day. $day = mktime( 0, 0, 0, $md, $mm, $my ); // The day of the week from the timestamp. $weekday = gmdate( 'w', $day ); if ( ! is_numeric( $start_of_week ) ) { $start_of_week = get_option( 'start_of_week' ); } if ( $weekday < $start_of_week ) { $weekday += 7; } // The most recent week start day on or before $day. $start = $day - DAY_IN_SECONDS * ( $weekday - $start_of_week ); // $start + 1 week - 1 second. $end = $start + WEEK_IN_SECONDS - 1; return compact( 'start', 'end' ); } /** * Serialize data, if needed. * * @since 2.0.5 * * @param string|array|object $data Data that might be serialized. * @return mixed A scalar data. */ function maybe_serialize( $data ) { if ( is_array( $data ) || is_object( $data ) ) { return serialize( $data ); } /* * Double serialization is required for backward compatibility. * See https://core.trac.wordpress.org/ticket/12930 * Also the world will end. See WP 3.6.1. */ if ( is_serialized( $data, false ) ) { return serialize( $data ); } return $data; } /** * Unserialize data only if it was serialized. * * @since 2.0.0 * * @param string $data Data that might be unserialized. * @return mixed Unserialized data can be any type. */ function maybe_unserialize( $data ) { if ( is_serialized( $data ) ) { // Don't attempt to unserialize data that wasn't serialized going in. return @unserialize( trim( $data ) ); } return $data; } /** * Check value to find if it was serialized. * * If $data is not an string, then returned value will always be false. * Serialized data is always a string. * * @since 2.0.5 * * @param string $data Value to check to see if was serialized. * @param bool $strict Optional. Whether to be strict about the end of the string. Default true. * @return bool False if not serialized and true if it was. */ function is_serialized( $data, $strict = true ) { // If it isn't a string, it isn't serialized. if ( ! is_string( $data ) ) { return false; } $data = trim( $data ); if ( 'N;' === $data ) { return true; } if ( strlen( $data ) < 4 ) { return false; } if ( ':' !== $data[1] ) { return false; } if ( $strict ) { $lastc = substr( $data, -1 ); if ( ';' !== $lastc && '}' !== $lastc ) { return false; } } else { $semicolon = strpos( $data, ';' ); $brace = strpos( $data, '}' ); // Either ; or } must exist. if ( false === $semicolon && false === $brace ) { return false; } // But neither must be in the first X characters. if ( false !== $semicolon && $semicolon < 3 ) { return false; } if ( false !== $brace && $brace < 4 ) { return false; } } $token = $data[0]; switch ( $token ) { case 's': if ( $strict ) { if ( '"' !== substr( $data, -2, 1 ) ) { return false; } } elseif ( false === strpos( $data, '"' ) ) { return false; } // Or else fall through. case 'a': case 'O': return (bool) preg_match( "/^{$token}:[0-9]+:/s", $data ); case 'b': case 'i': case 'd': $end = $strict ? '$' : ''; return (bool) preg_match( "/^{$token}:[0-9.E+-]+;$end/", $data ); } return false; } /** * Check whether serialized data is of string type. * * @since 2.0.5 * * @param string $data Serialized data. * @return bool False if not a serialized string, true if it is. */ function is_serialized_string( $data ) { // if it isn't a string, it isn't a serialized string. if ( ! is_string( $data ) ) { return false; } $data = trim( $data ); if ( strlen( $data ) < 4 ) { return false; } elseif ( ':' !== $data[1] ) { return false; } elseif ( ';' !== substr( $data, -1 ) ) { return false; } elseif ( 's' !== $data[0] ) { return false; } elseif ( '"' !== substr( $data, -2, 1 ) ) { return false; } else { return true; } } /** * Retrieve post title from XMLRPC XML. * * If the title element is not part of the XML, then the default post title from * the $post_default_title will be used instead. * * @since 0.71 * * @global string $post_default_title Default XML-RPC post title. * * @param string $content XMLRPC XML Request content * @return string Post title */ function xmlrpc_getposttitle( $content ) { global $post_default_title; if ( preg_match( '/
'; $redirect_to = isset( $_REQUEST['redirect_to'] ) ? $_REQUEST['redirect_to'] : ''; $html .= sprintf( /* translators: %s: Logout URL. */ __( 'Do you really want to log out?' ), wp_logout_url( $redirect_to ) ); } else { $html = __( 'The link you followed has expired.' ); if ( wp_get_referer() ) { $html .= '
'; $html .= sprintf( '%s', esc_url( remove_query_arg( 'updated', wp_get_referer() ) ), __( 'Please try again.' ) ); } } wp_die( $html, __( 'Something went wrong.' ), 403 ); } /** * Kills WordPress execution and displays HTML page with an error message. * * This function complements the `die()` PHP function. The difference is that * HTML will be displayed to the user. It is recommended to use this function * only when the execution should not continue any further. It is not recommended * to call this function very often, and try to handle as many errors as possible * silently or more gracefully. * * As a shorthand, the desired HTTP response code may be passed as an integer to * the `$title` parameter (the default title would apply) or the `$args` parameter. * * @since 2.0.4 * @since 4.1.0 The `$title` and `$args` parameters were changed to optionally accept * an integer to be used as the response code. * @since 5.1.0 The `$link_url`, `$link_text`, and `$exit` arguments were added. * @since 5.3.0 The `$charset` argument was added. * * @global WP_Query $wp_query WordPress Query object. * * @param string|WP_Error $message Optional. Error message. If this is a WP_Error object, * and not an Ajax or XML-RPC request, the error's messages are used. * Default empty. * @param string|int $title Optional. Error title. If `$message` is a `WP_Error` object, * error data with the key 'title' may be used to specify the title. * If `$title` is an integer, then it is treated as the response * code. Default empty. * @param string|array|int $args { * Optional. Arguments to control behavior. If `$args` is an integer, then it is treated * as the response code. Default empty array. * * @type int $response The HTTP response code. Default 200 for Ajax requests, 500 otherwise. * @type string $link_url A URL to include a link to. Only works in combination with $link_text. * Default empty string. * @type string $link_text A label for the link to include. Only works in combination with $link_url. * Default empty string. * @type bool $back_link Whether to include a link to go back. Default false. * @type string $text_direction The text direction. This is only useful internally, when WordPress * is still loading and the site's locale is not set up yet. Accepts 'rtl'. * Default is the value of is_rtl(). * @type string $charset Character set of the HTML output. Default 'utf-8'. * @type string $code Error code to use. Default is 'wp_die', or the main error code if $message * is a WP_Error. * @type bool $exit Whether to exit the process after completion. Default true. * } */ function wp_die( $message = '', $title = '', $args = array() ) { global $wp_query; if ( is_int( $args ) ) { $args = array( 'response' => $args ); } elseif ( is_int( $title ) ) { $args = array( 'response' => $title ); $title = ''; } if ( wp_doing_ajax() ) { /** * Filters the callback for killing WordPress execution for Ajax requests. * * @since 3.4.0 * * @param callable $function Callback function name. */ $function = apply_filters( 'wp_die_ajax_handler', '_ajax_wp_die_handler' ); } elseif ( wp_is_json_request() ) { /** * Filters the callback for killing WordPress execution for JSON requests. * * @since 5.1.0 * * @param callable $function Callback function name. */ $function = apply_filters( 'wp_die_json_handler', '_json_wp_die_handler' ); } elseif ( wp_is_jsonp_request() ) { /** * Filters the callback for killing WordPress execution for JSONP requests. * * @since 5.2.0 * * @param callable $function Callback function name. */ $function = apply_filters( 'wp_die_jsonp_handler', '_jsonp_wp_die_handler' ); } elseif ( defined( 'XMLRPC_REQUEST' ) && XMLRPC_REQUEST ) { /** * Filters the callback for killing WordPress execution for XML-RPC requests. * * @since 3.4.0 * * @param callable $function Callback function name. */ $function = apply_filters( 'wp_die_xmlrpc_handler', '_xmlrpc_wp_die_handler' ); } elseif ( wp_is_xml_request() || isset( $wp_query ) && ( function_exists( 'is_feed' ) && is_feed() || function_exists( 'is_comment_feed' ) && is_comment_feed() || function_exists( 'is_trackback' ) && is_trackback() ) ) { /** * Filters the callback for killing WordPress execution for XML requests. * * @since 5.2.0 * * @param callable $function Callback function name. */ $function = apply_filters( 'wp_die_xml_handler', '_xml_wp_die_handler' ); } else { /** * Filters the callback for killing WordPress execution for all non-Ajax, non-JSON, non-XML requests. * * @since 3.0.0 * * @param callable $function Callback function name. */ $function = apply_filters( 'wp_die_handler', '_default_wp_die_handler' ); } call_user_func( $function, $message, $title, $args ); } /** * Kills WordPress execution and displays HTML page with an error message. * * This is the default handler for wp_die(). If you want a custom one, * you can override this using the {@see 'wp_die_handler'} filter in wp_die(). * * @since 3.0.0 * @access private * * @param string|WP_Error $message Error message or WP_Error object. * @param string $title Optional. Error title. Default empty. * @param string|array $args Optional. Arguments to control behavior. Default empty array. */ function _default_wp_die_handler( $message, $title = '', $args = array() ) { list( $message, $title, $parsed_args ) = _wp_die_process_input( $message, $title, $args ); if ( is_string( $message ) ) { if ( ! empty( $parsed_args['additional_errors'] ) ) { $message = array_merge( array( $message ), wp_list_pluck( $parsed_args['additional_errors'], 'message' ) ); $message = "
{$parsed_args['code']}
__construct()
'
),
E_USER_DEPRECATED
);
} else {
trigger_error(
sprintf(
/* translators: 1: PHP class name, 2: Version number, 3: __construct() method. */
__( 'The called constructor method for %1$s is deprecated since version %2$s! Use %3$s instead.' ),
$class,
$version,
'__construct()
'
),
E_USER_DEPRECATED
);
}
} else {
if ( ! empty( $parent_class ) ) {
trigger_error(
sprintf(
'The called constructor method for %1$s in %2$s is deprecated since version %3$s! Use %4$s instead.',
$class,
$parent_class,
$version,
'__construct()
'
),
E_USER_DEPRECATED
);
} else {
trigger_error(
sprintf(
'The called constructor method for %1$s is deprecated since version %2$s! Use %3$s instead.',
$class,
$version,
'__construct()
'
),
E_USER_DEPRECATED
);
}
}
}
}
/**
* Mark a file as deprecated and inform when it has been used.
*
* There is a hook {@see 'deprecated_file_included'} that will be called that can be used
* to get the backtrace up to what file and function included the deprecated
* file.
*
* The current behavior is to trigger a user error if `WP_DEBUG` is true.
*
* This function is to be used in every file that is deprecated.
*
* @since 2.5.0
* @since 5.4.0 This function is no longer marked as "private".
* @since 5.4.0 The error type is now classified as E_USER_DEPRECATED (used to default to E_USER_NOTICE).
*
* @param string $file The file that was included.
* @param string $version The version of WordPress that deprecated the file.
* @param string $replacement Optional. The file that should have been included based on ABSPATH.
* Default null.
* @param string $message Optional. A message regarding the change. Default empty.
*/
function _deprecated_file( $file, $version, $replacement = null, $message = '' ) {
/**
* Fires when a deprecated file is called.
*
* @since 2.5.0
*
* @param string $file The file that was called.
* @param string $replacement The file that should have been included based on ABSPATH.
* @param string $version The version of WordPress that deprecated the file.
* @param string $message A message regarding the change.
*/
do_action( 'deprecated_file_included', $file, $replacement, $version, $message );
/**
* Filters whether to trigger an error for deprecated files.
*
* @since 2.5.0
*
* @param bool $trigger Whether to trigger the error for deprecated files. Default true.
*/
if ( WP_DEBUG && apply_filters( 'deprecated_file_trigger_error', true ) ) {
$message = empty( $message ) ? '' : ' ' . $message;
if ( function_exists( '__' ) ) {
if ( ! is_null( $replacement ) ) {
trigger_error(
sprintf(
/* translators: 1: PHP file name, 2: Version number, 3: Alternative file name. */
__( '%1$s is deprecated since version %2$s! Use %3$s instead.' ),
$file,
$version,
$replacement
) . $message,
E_USER_DEPRECATED
);
} else {
trigger_error(
sprintf(
/* translators: 1: PHP file name, 2: Version number. */
__( '%1$s is deprecated since version %2$s with no alternative available.' ),
$file,
$version
) . $message,
E_USER_DEPRECATED
);
}
} else {
if ( ! is_null( $replacement ) ) {
trigger_error(
sprintf(
'%1$s is deprecated since version %2$s! Use %3$s instead.',
$file,
$version,
$replacement
) . $message,
E_USER_DEPRECATED
);
} else {
trigger_error(
sprintf(
'%1$s is deprecated since version %2$s with no alternative available.',
$file,
$version
) . $message,
E_USER_DEPRECATED
);
}
}
}
}
/**
* Mark a function argument as deprecated and inform when it has been used.
*
* This function is to be used whenever a deprecated function argument is used.
* Before this function is called, the argument must be checked for whether it was
* used by comparing it to its default value or evaluating whether it is empty.
* For example:
*
* if ( ! empty( $deprecated ) ) {
* _deprecated_argument( __FUNCTION__, '3.0.0' );
* }
*
* There is a hook deprecated_argument_run that will be called that can be used
* to get the backtrace up to what file and function used the deprecated
* argument.
*
* The current behavior is to trigger a user error if WP_DEBUG is true.
*
* @since 3.0.0
* @since 5.4.0 This function is no longer marked as "private".
* @since 5.4.0 The error type is now classified as E_USER_DEPRECATED (used to default to E_USER_NOTICE).
*
* @param string $function The function that was called.
* @param string $version The version of WordPress that deprecated the argument used.
* @param string $message Optional. A message regarding the change. Default null.
*/
function _deprecated_argument( $function, $version, $message = null ) {
/**
* Fires when a deprecated argument is called.
*
* @since 3.0.0
*
* @param string $function The function that was called.
* @param string $message A message regarding the change.
* @param string $version The version of WordPress that deprecated the argument used.
*/
do_action( 'deprecated_argument_run', $function, $message, $version );
/**
* Filters whether to trigger an error for deprecated arguments.
*
* @since 3.0.0
*
* @param bool $trigger Whether to trigger the error for deprecated arguments. Default true.
*/
if ( WP_DEBUG && apply_filters( 'deprecated_argument_trigger_error', true ) ) {
if ( function_exists( '__' ) ) {
if ( ! is_null( $message ) ) {
trigger_error(
sprintf(
/* translators: 1: PHP function name, 2: Version number, 3: Optional message regarding the change. */
__( '%1$s was called with an argument that is deprecated since version %2$s! %3$s' ),
$function,
$version,
$message
),
E_USER_DEPRECATED
);
} else {
trigger_error(
sprintf(
/* translators: 1: PHP function name, 2: Version number. */
__( '%1$s was called with an argument that is deprecated since version %2$s with no alternative available.' ),
$function,
$version
),
E_USER_DEPRECATED
);
}
} else {
if ( ! is_null( $message ) ) {
trigger_error(
sprintf(
'%1$s was called with an argument that is deprecated since version %2$s! %3$s',
$function,
$version,
$message
),
E_USER_DEPRECATED
);
} else {
trigger_error(
sprintf(
'%1$s was called with an argument that is deprecated since version %2$s with no alternative available.',
$function,
$version
),
E_USER_DEPRECATED
);
}
}
}
}
/**
* Marks a deprecated action or filter hook as deprecated and throws a notice.
*
* Use the {@see 'deprecated_hook_run'} action to get the backtrace describing where
* the deprecated hook was called.
*
* Default behavior is to trigger a user error if `WP_DEBUG` is true.
*
* This function is called by the do_action_deprecated() and apply_filters_deprecated()
* functions, and so generally does not need to be called directly.
*
* @since 4.6.0
* @since 5.4.0 The error type is now classified as E_USER_DEPRECATED (used to default to E_USER_NOTICE).
* @access private
*
* @param string $hook The hook that was used.
* @param string $version The version of WordPress that deprecated the hook.
* @param string $replacement Optional. The hook that should have been used. Default null.
* @param string $message Optional. A message regarding the change. Default null.
*/
function _deprecated_hook( $hook, $version, $replacement = null, $message = null ) {
/**
* Fires when a deprecated hook is called.
*
* @since 4.6.0
*
* @param string $hook The hook that was called.
* @param string $replacement The hook that should be used as a replacement.
* @param string $version The version of WordPress that deprecated the argument used.
* @param string $message A message regarding the change.
*/
do_action( 'deprecated_hook_run', $hook, $replacement, $version, $message );
/**
* Filters whether to trigger deprecated hook errors.
*
* @since 4.6.0
*
* @param bool $trigger Whether to trigger deprecated hook errors. Requires
* `WP_DEBUG` to be defined true.
*/
if ( WP_DEBUG && apply_filters( 'deprecated_hook_trigger_error', true ) ) {
$message = empty( $message ) ? '' : ' ' . $message;
if ( ! is_null( $replacement ) ) {
trigger_error(
sprintf(
/* translators: 1: WordPress hook name, 2: Version number, 3: Alternative hook name. */
__( '%1$s is deprecated since version %2$s! Use %3$s instead.' ),
$hook,
$version,
$replacement
) . $message,
E_USER_DEPRECATED
);
} else {
trigger_error(
sprintf(
/* translators: 1: WordPress hook name, 2: Version number. */
__( '%1$s is deprecated since version %2$s with no alternative available.' ),
$hook,
$version
) . $message,
E_USER_DEPRECATED
);
}
}
}
/**
* Mark something as being incorrectly called.
*
* There is a hook {@see 'doing_it_wrong_run'} that will be called that can be used
* to get the backtrace up to what file and function called the deprecated
* function.
*
* The current behavior is to trigger a user error if `WP_DEBUG` is true.
*
* @since 3.1.0
* @since 5.4.0 This function is no longer marked as "private".
*
* @param string $function The function that was called.
* @param string $message A message explaining what has been done incorrectly.
* @param string $version The version of WordPress where the message was added.
*/
function _doing_it_wrong( $function, $message, $version ) {
/**
* Fires when the given function is being used incorrectly.
*
* @since 3.1.0
*
* @param string $function The function that was called.
* @param string $message A message explaining what has been done incorrectly.
* @param string $version The version of WordPress where the message was added.
*/
do_action( 'doing_it_wrong_run', $function, $message, $version );
/**
* Filters whether to trigger an error for _doing_it_wrong() calls.
*
* @since 3.1.0
* @since 5.1.0 Added the $function, $message and $version parameters.
*
* @param bool $trigger Whether to trigger the error for _doing_it_wrong() calls. Default true.
* @param string $function The function that was called.
* @param string $message A message explaining what has been done incorrectly.
* @param string $version The version of WordPress where the message was added.
*/
if ( WP_DEBUG && apply_filters( 'doing_it_wrong_trigger_error', true, $function, $message, $version ) ) {
if ( function_exists( '__' ) ) {
if ( is_null( $version ) ) {
$version = '';
} else {
/* translators: %s: Version number. */
$version = sprintf( __( '(This message was added in version %s.)' ), $version );
}
$message .= ' ' . sprintf(
/* translators: %s: Documentation URL. */
__( 'Please see Debugging in WordPress for more information.' ),
__( 'https://wordpress.org/support/article/debugging-in-wordpress/' )
);
trigger_error(
sprintf(
/* translators: Developer debugging message. 1: PHP function name, 2: Explanatory message, 3: Version information message. */
__( '%1$s was called incorrectly. %2$s %3$s' ),
$function,
$message,
$version
),
E_USER_NOTICE
);
} else {
if ( is_null( $version ) ) {
$version = '';
} else {
$version = sprintf( '(This message was added in version %s.)', $version );
}
$message .= sprintf(
' Please see Debugging in WordPress for more information.',
'https://wordpress.org/support/article/debugging-in-wordpress/'
);
trigger_error(
sprintf(
'%1$s was called incorrectly. %2$s %3$s',
$function,
$message,
$version
),
E_USER_NOTICE
);
}
}
}
/**
* Is the server running earlier than 1.5.0 version of lighttpd?
*
* @since 2.5.0
*
* @return bool Whether the server is running lighttpd < 1.5.0.
*/
function is_lighttpd_before_150() {
$server_parts = explode( '/', isset( $_SERVER['SERVER_SOFTWARE'] ) ? $_SERVER['SERVER_SOFTWARE'] : '' );
$server_parts[1] = isset( $server_parts[1] ) ? $server_parts[1] : '';
return ( 'lighttpd' === $server_parts[0] && -1 == version_compare( $server_parts[1], '1.5.0' ) );
}
/**
* Does the specified module exist in the Apache config?
*
* @since 2.5.0
*
* @global bool $is_apache
*
* @param string $mod The module, e.g. mod_rewrite.
* @param bool $default Optional. The default return value if the module is not found. Default false.
* @return bool Whether the specified module is loaded.
*/
function apache_mod_loaded( $mod, $default = false ) {
global $is_apache;
if ( ! $is_apache ) {
return false;
}
if ( function_exists( 'apache_get_modules' ) ) {
$mods = apache_get_modules();
if ( in_array( $mod, $mods, true ) ) {
return true;
}
} elseif ( function_exists( 'phpinfo' ) && false === strpos( ini_get( 'disable_functions' ), 'phpinfo' ) ) {
ob_start();
phpinfo( 8 );
$phpinfo = ob_get_clean();
if ( false !== strpos( $phpinfo, $mod ) ) {
return true;
}
}
return $default;
}
/**
* Check if IIS 7+ supports pretty permalinks.
*
* @since 2.8.0
*
* @global bool $is_iis7
*
* @return bool Whether IIS7 supports permalinks.
*/
function iis7_supports_permalinks() {
global $is_iis7;
$supports_permalinks = false;
if ( $is_iis7 ) {
/* First we check if the DOMDocument class exists. If it does not exist, then we cannot
* easily update the xml configuration file, hence we just bail out and tell user that
* pretty permalinks cannot be used.
*
* Next we check if the URL Rewrite Module 1.1 is loaded and enabled for the web site. When
* URL Rewrite 1.1 is loaded it always sets a server variable called 'IIS_UrlRewriteModule'.
* Lastly we make sure that PHP is running via FastCGI. This is important because if it runs
* via ISAPI then pretty permalinks will not work.
*/
$supports_permalinks = class_exists( 'DOMDocument', false ) && isset( $_SERVER['IIS_UrlRewriteModule'] ) && ( 'cgi-fcgi' === PHP_SAPI );
}
/**
* Filters whether IIS 7+ supports pretty permalinks.
*
* @since 2.8.0
*
* @param bool $supports_permalinks Whether IIS7 supports permalinks. Default false.
*/
return apply_filters( 'iis7_supports_permalinks', $supports_permalinks );
}
/**
* Validates a file name and path against an allowed set of rules.
*
* A return value of `1` means the file path contains directory traversal.
*
* A return value of `2` means the file path contains a Windows drive path.
*
* A return value of `3` means the file is not in the allowed files list.
*
* @since 1.2.0
*
* @param string $file File path.
* @param string[] $allowed_files Optional. Array of allowed files.
* @return int 0 means nothing is wrong, greater than 0 means something was wrong.
*/
function validate_file( $file, $allowed_files = array() ) {
// `../` on its own is not allowed:
if ( '../' === $file ) {
return 1;
}
// More than one occurence of `../` is not allowed:
if ( preg_match_all( '#\.\./#', $file, $matches, PREG_SET_ORDER ) && ( count( $matches ) > 1 ) ) {
return 1;
}
// `../` which does not occur at the end of the path is not allowed:
if ( false !== strpos( $file, '../' ) && '../' !== mb_substr( $file, -3, 3 ) ) {
return 1;
}
// Files not in the allowed file list are not allowed:
if ( ! empty( $allowed_files ) && ! in_array( $file, $allowed_files, true ) ) {
return 3;
}
// Absolute Windows drive paths are not allowed:
if ( ':' === substr( $file, 1, 1 ) ) {
return 2;
}
return 0;
}
/**
* Whether to force SSL used for the Administration Screens.
*
* @since 2.6.0
*
* @staticvar bool $forced
*
* @param string|bool $force Optional. Whether to force SSL in admin screens. Default null.
* @return bool True if forced, false if not forced.
*/
function force_ssl_admin( $force = null ) {
static $forced = false;
if ( ! is_null( $force ) ) {
$old_forced = $forced;
$forced = $force;
return $old_forced;
}
return $forced;
}
/**
* Guess the URL for the site.
*
* Will remove wp-admin links to retrieve only return URLs not in the wp-admin
* directory.
*
* @since 2.6.0
*
* @return string The guessed URL.
*/
function wp_guess_url() {
if ( defined( 'WP_SITEURL' ) && '' !== WP_SITEURL ) {
$url = WP_SITEURL;
} else {
$abspath_fix = str_replace( '\\', '/', ABSPATH );
$script_filename_dir = dirname( $_SERVER['SCRIPT_FILENAME'] );
// The request is for the admin.
if ( strpos( $_SERVER['REQUEST_URI'], 'wp-admin' ) !== false || strpos( $_SERVER['REQUEST_URI'], 'wp-login.php' ) !== false ) {
$path = preg_replace( '#/(wp-admin/.*|wp-login.php)#i', '', $_SERVER['REQUEST_URI'] );
// The request is for a file in ABSPATH.
} elseif ( $script_filename_dir . '/' === $abspath_fix ) {
// Strip off any file/query params in the path.
$path = preg_replace( '#/[^/]*$#i', '', $_SERVER['PHP_SELF'] );
} else {
if ( false !== strpos( $_SERVER['SCRIPT_FILENAME'], $abspath_fix ) ) {
// Request is hitting a file inside ABSPATH.
$directory = str_replace( ABSPATH, '', $script_filename_dir );
// Strip off the subdirectory, and any file/query params.
$path = preg_replace( '#/' . preg_quote( $directory, '#' ) . '/[^/]*$#i', '', $_SERVER['REQUEST_URI'] );
} elseif ( false !== strpos( $abspath_fix, $script_filename_dir ) ) {
// Request is hitting a file above ABSPATH.
$subdirectory = substr( $abspath_fix, strpos( $abspath_fix, $script_filename_dir ) + strlen( $script_filename_dir ) );
// Strip off any file/query params from the path, appending the subdirectory to the installation.
$path = preg_replace( '#/[^/]*$#i', '', $_SERVER['REQUEST_URI'] ) . $subdirectory;
} else {
$path = $_SERVER['REQUEST_URI'];
}
}
$schema = is_ssl() ? 'https://' : 'http://'; // set_url_scheme() is not defined yet.
$url = $schema . $_SERVER['HTTP_HOST'] . $path;
}
return rtrim( $url, '/' );
}
/**
* Temporarily suspend cache additions.
*
* Stops more data being added to the cache, but still allows cache retrieval.
* This is useful for actions, such as imports, when a lot of data would otherwise
* be almost uselessly added to the cache.
*
* Suspension lasts for a single page load at most. Remember to call this
* function again if you wish to re-enable cache adds earlier.
*
* @since 3.3.0
*
* @staticvar bool $_suspend
*
* @param bool $suspend Optional. Suspends additions if true, re-enables them if false.
* @return bool The current suspend setting
*/
function wp_suspend_cache_addition( $suspend = null ) {
static $_suspend = false;
if ( is_bool( $suspend ) ) {
$_suspend = $suspend;
}
return $_suspend;
}
/**
* Suspend cache invalidation.
*
* Turns cache invalidation on and off. Useful during imports where you don't want to do
* invalidations every time a post is inserted. Callers must be sure that what they are
* doing won't lead to an inconsistent cache when invalidation is suspended.
*
* @since 2.7.0
*
* @global bool $_wp_suspend_cache_invalidation
*
* @param bool $suspend Optional. Whether to suspend or enable cache invalidation. Default true.
* @return bool The current suspend setting.
*/
function wp_suspend_cache_invalidation( $suspend = true ) {
global $_wp_suspend_cache_invalidation;
$current_suspend = $_wp_suspend_cache_invalidation;
$_wp_suspend_cache_invalidation = $suspend;
return $current_suspend;
}
/**
* Determine whether a site is the main site of the current network.
*
* @since 3.0.0
* @since 4.9.0 The `$network_id` parameter was added.
*
* @param int $site_id Optional. Site ID to test. Defaults to current site.
* @param int $network_id Optional. Network ID of the network to check for.
* Defaults to current network.
* @return bool True if $site_id is the main site of the network, or if not
* running Multisite.
*/
function is_main_site( $site_id = null, $network_id = null ) {
if ( ! is_multisite() ) {
return true;
}
if ( ! $site_id ) {
$site_id = get_current_blog_id();
}
$site_id = (int) $site_id;
return get_main_site_id( $network_id ) === $site_id;
}
/**
* Gets the main site ID.
*
* @since 4.9.0
*
* @param int $network_id Optional. The ID of the network for which to get the main site.
* Defaults to the current network.
* @return int The ID of the main site.
*/
function get_main_site_id( $network_id = null ) {
if ( ! is_multisite() ) {
return get_current_blog_id();
}
$network = get_network( $network_id );
if ( ! $network ) {
return 0;
}
return $network->site_id;
}
/**
* Determine whether a network is the main network of the Multisite installation.
*
* @since 3.7.0
*
* @param int $network_id Optional. Network ID to test. Defaults to current network.
* @return bool True if $network_id is the main network, or if not running Multisite.
*/
function is_main_network( $network_id = null ) {
if ( ! is_multisite() ) {
return true;
}
if ( null === $network_id ) {
$network_id = get_current_network_id();
}
$network_id = (int) $network_id;
return ( get_main_network_id() === $network_id );
}
/**
* Get the main network ID.
*
* @since 4.3.0
*
* @return int The ID of the main network.
*/
function get_main_network_id() {
if ( ! is_multisite() ) {
return 1;
}
$current_network = get_network();
if ( defined( 'PRIMARY_NETWORK_ID' ) ) {
$main_network_id = PRIMARY_NETWORK_ID;
} elseif ( isset( $current_network->id ) && 1 === (int) $current_network->id ) {
// If the current network has an ID of 1, assume it is the main network.
$main_network_id = 1;
} else {
$_networks = get_networks(
array(
'fields' => 'ids',
'number' => 1,
)
);
$main_network_id = array_shift( $_networks );
}
/**
* Filters the main network ID.
*
* @since 4.3.0
*
* @param int $main_network_id The ID of the main network.
*/
return (int) apply_filters( 'get_main_network_id', $main_network_id );
}
/**
* Determine whether global terms are enabled.
*
* @since 3.0.0
*
* @staticvar bool $global_terms
*
* @return bool True if multisite and global terms enabled.
*/
function global_terms_enabled() {
if ( ! is_multisite() ) {
return false;
}
static $global_terms = null;
if ( is_null( $global_terms ) ) {
/**
* Filters whether global terms are enabled.
*
* Passing a non-null value to the filter will effectively short-circuit the function,
* returning the value of the 'global_terms_enabled' site option instead.
*
* @since 3.0.0
*
* @param null $enabled Whether global terms are enabled.
*/
$filter = apply_filters( 'global_terms_enabled', null );
if ( ! is_null( $filter ) ) {
$global_terms = (bool) $filter;
} else {
$global_terms = (bool) get_site_option( 'global_terms_enabled', false );
}
}
return $global_terms;
}
/**
* Determines whether site meta is enabled.
*
* This function checks whether the 'blogmeta' database table exists. The result is saved as
* a setting for the main network, making it essentially a global setting. Subsequent requests
* will refer to this setting instead of running the query.
*
* @since 5.1.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @return bool True if site meta is supported, false otherwise.
*/
function is_site_meta_supported() {
global $wpdb;
if ( ! is_multisite() ) {
return false;
}
$network_id = get_main_network_id();
$supported = get_network_option( $network_id, 'site_meta_supported', false );
if ( false === $supported ) {
$supported = $wpdb->get_var( "SHOW TABLES LIKE '{$wpdb->blogmeta}'" ) ? 1 : 0;
update_network_option( $network_id, 'site_meta_supported', $supported );
}
return (bool) $supported;
}
/**
* gmt_offset modification for smart timezone handling.
*
* Overrides the gmt_offset option if we have a timezone_string available.
*
* @since 2.8.0
*
* @return float|false Timezone GMT offset, false otherwise.
*/
function wp_timezone_override_offset() {
$timezone_string = get_option( 'timezone_string' );
if ( ! $timezone_string ) {
return false;
}
$timezone_object = timezone_open( $timezone_string );
$datetime_object = date_create();
if ( false === $timezone_object || false === $datetime_object ) {
return false;
}
return round( timezone_offset_get( $timezone_object, $datetime_object ) / HOUR_IN_SECONDS, 2 );
}
/**
* Sort-helper for timezones.
*
* @since 2.9.0
* @access private
*
* @param array $a
* @param array $b
* @return int
*/
function _wp_timezone_choice_usort_callback( $a, $b ) {
// Don't use translated versions of Etc.
if ( 'Etc' === $a['continent'] && 'Etc' === $b['continent'] ) {
// Make the order of these more like the old dropdown.
if ( 'GMT+' === substr( $a['city'], 0, 4 ) && 'GMT+' === substr( $b['city'], 0, 4 ) ) {
return -1 * ( strnatcasecmp( $a['city'], $b['city'] ) );
}
if ( 'UTC' === $a['city'] ) {
if ( 'GMT+' === substr( $b['city'], 0, 4 ) ) {
return 1;
}
return -1;
}
if ( 'UTC' === $b['city'] ) {
if ( 'GMT+' === substr( $a['city'], 0, 4 ) ) {
return -1;
}
return 1;
}
return strnatcasecmp( $a['city'], $b['city'] );
}
if ( $a['t_continent'] == $b['t_continent'] ) {
if ( $a['t_city'] == $b['t_city'] ) {
return strnatcasecmp( $a['t_subcity'], $b['t_subcity'] );
}
return strnatcasecmp( $a['t_city'], $b['t_city'] );
} else {
// Force Etc to the bottom of the list.
if ( 'Etc' === $a['continent'] ) {
return 1;
}
if ( 'Etc' === $b['continent'] ) {
return -1;
}
return strnatcasecmp( $a['t_continent'], $b['t_continent'] );
}
}
/**
* Gives a nicely-formatted list of timezone strings.
*
* @since 2.9.0
* @since 4.7.0 Added the `$locale` parameter.
*
* @staticvar bool $mo_loaded
* @staticvar string $locale_loaded
*
* @param string $selected_zone Selected timezone.
* @param string $locale Optional. Locale to load the timezones in. Default current site locale.
* @return string
*/
function wp_timezone_choice( $selected_zone, $locale = null ) {
static $mo_loaded = false, $locale_loaded = null;
$continents = array( 'Africa', 'America', 'Antarctica', 'Arctic', 'Asia', 'Atlantic', 'Australia', 'Europe', 'Indian', 'Pacific' );
// Load translations for continents and cities.
if ( ! $mo_loaded || $locale !== $locale_loaded ) {
$locale_loaded = $locale ? $locale : get_locale();
$mofile = WP_LANG_DIR . '/continents-cities-' . $locale_loaded . '.mo';
unload_textdomain( 'continents-cities' );
load_textdomain( 'continents-cities', $mofile );
$mo_loaded = true;
}
$zonen = array();
foreach ( timezone_identifiers_list() as $zone ) {
$zone = explode( '/', $zone );
if ( ! in_array( $zone[0], $continents, true ) ) {
continue;
}
// This determines what gets set and translated - we don't translate Etc/* strings here, they are done later.
$exists = array(
0 => ( isset( $zone[0] ) && $zone[0] ),
1 => ( isset( $zone[1] ) && $zone[1] ),
2 => ( isset( $zone[2] ) && $zone[2] ),
);
$exists[3] = ( $exists[0] && 'Etc' !== $zone[0] );
$exists[4] = ( $exists[1] && $exists[3] );
$exists[5] = ( $exists[2] && $exists[3] );
// phpcs:disable WordPress.WP.I18n.LowLevelTranslationFunction,WordPress.WP.I18n.NonSingularStringLiteralText
$zonen[] = array(
'continent' => ( $exists[0] ? $zone[0] : '' ),
'city' => ( $exists[1] ? $zone[1] : '' ),
'subcity' => ( $exists[2] ? $zone[2] : '' ),
't_continent' => ( $exists[3] ? translate( str_replace( '_', ' ', $zone[0] ), 'continents-cities' ) : '' ),
't_city' => ( $exists[4] ? translate( str_replace( '_', ' ', $zone[1] ), 'continents-cities' ) : '' ),
't_subcity' => ( $exists[5] ? translate( str_replace( '_', ' ', $zone[2] ), 'continents-cities' ) : '' ),
);
// phpcs:enable
}
usort( $zonen, '_wp_timezone_choice_usort_callback' );
$structure = array();
if ( empty( $selected_zone ) ) {
$structure[] = '';
}
foreach ( $zonen as $key => $zone ) {
// Build value in an array to join later.
$value = array( $zone['continent'] );
if ( empty( $zone['city'] ) ) {
// It's at the continent level (generally won't happen).
$display = $zone['t_continent'];
} else {
// It's inside a continent group.
// Continent optgroup.
if ( ! isset( $zonen[ $key - 1 ] ) || $zonen[ $key - 1 ]['continent'] !== $zone['continent'] ) {
$label = $zone['t_continent'];
$structure[] = '';
}
}
// Do UTC.
$structure[] = '';
// Do manual UTC offsets.
$structure[] = '';
return join( "\n", $structure );
}
/**
* Strip close comment and close php tags from file headers used by WP.
*
* @since 2.8.0
* @access private
*
* @see https://core.trac.wordpress.org/ticket/8497
*
* @param string $str Header comment to clean up.
* @return string
*/
function _cleanup_header_comment( $str ) {
return trim( preg_replace( '/\s*(?:\*\/|\?>).*/', '', $str ) );
}
/**
* Permanently delete comments or posts of any type that have held a status
* of 'trash' for the number of days defined in EMPTY_TRASH_DAYS.
*
* The default value of `EMPTY_TRASH_DAYS` is 30 (days).
*
* @since 2.9.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*/
function wp_scheduled_delete() {
global $wpdb;
$delete_timestamp = time() - ( DAY_IN_SECONDS * EMPTY_TRASH_DAYS );
$posts_to_delete = $wpdb->get_results( $wpdb->prepare( "SELECT post_id FROM $wpdb->postmeta WHERE meta_key = '_wp_trash_meta_time' AND meta_value < %d", $delete_timestamp ), ARRAY_A );
foreach ( (array) $posts_to_delete as $post ) {
$post_id = (int) $post['post_id'];
if ( ! $post_id ) {
continue;
}
$del_post = get_post( $post_id );
if ( ! $del_post || 'trash' !== $del_post->post_status ) {
delete_post_meta( $post_id, '_wp_trash_meta_status' );
delete_post_meta( $post_id, '_wp_trash_meta_time' );
} else {
wp_delete_post( $post_id );
}
}
$comments_to_delete = $wpdb->get_results( $wpdb->prepare( "SELECT comment_id FROM $wpdb->commentmeta WHERE meta_key = '_wp_trash_meta_time' AND meta_value < %d", $delete_timestamp ), ARRAY_A );
foreach ( (array) $comments_to_delete as $comment ) {
$comment_id = (int) $comment['comment_id'];
if ( ! $comment_id ) {
continue;
}
$del_comment = get_comment( $comment_id );
if ( ! $del_comment || 'trash' !== $del_comment->comment_approved ) {
delete_comment_meta( $comment_id, '_wp_trash_meta_time' );
delete_comment_meta( $comment_id, '_wp_trash_meta_status' );
} else {
wp_delete_comment( $del_comment );
}
}
}
/**
* Retrieve metadata from a file.
*
* Searches for metadata in the first 8 KB of a file, such as a plugin or theme.
* Each piece of metadata must be on its own line. Fields can not span multiple
* lines, the value will get cut at the end of the first line.
*
* If the file data is not within that first 8 KB, then the author should correct
* their plugin file and move the data headers to the top.
*
* @link https://codex.wordpress.org/File_Header
*
* @since 2.9.0
*
* @param string $file Absolute path to the file.
* @param array $default_headers List of headers, in the format `array( 'HeaderKey' => 'Header Name' )`.
* @param string $context Optional. If specified adds filter hook {@see 'extra_$context_headers'}.
* Default empty.
* @return string[] Array of file header values keyed by header name.
*/
function get_file_data( $file, $default_headers, $context = '' ) {
// We don't need to write to the file, so just open for reading.
$fp = fopen( $file, 'r' );
// Pull only the first 8 KB of the file in.
$file_data = fread( $fp, 8 * KB_IN_BYTES );
// PHP will close file handle, but we are good citizens.
fclose( $fp );
// Make sure we catch CR-only line endings.
$file_data = str_replace( "\r", "\n", $file_data );
/**
* Filters extra file headers by context.
*
* The dynamic portion of the hook name, `$context`, refers to
* the context where extra headers might be loaded.
*
* @since 2.9.0
*
* @param array $extra_context_headers Empty array by default.
*/
$extra_headers = $context ? apply_filters( "extra_{$context}_headers", array() ) : array();
if ( $extra_headers ) {
$extra_headers = array_combine( $extra_headers, $extra_headers ); // Keys equal values.
$all_headers = array_merge( $extra_headers, (array) $default_headers );
} else {
$all_headers = $default_headers;
}
foreach ( $all_headers as $field => $regex ) {
if ( preg_match( '/^[ \t\/*#@]*' . preg_quote( $regex, '/' ) . ':(.*)$/mi', $file_data, $match ) && $match[1] ) {
$all_headers[ $field ] = _cleanup_header_comment( $match[1] );
} else {
$all_headers[ $field ] = '';
}
}
return $all_headers;
}
/**
* Returns true.
*
* Useful for returning true to filters easily.
*
* @since 3.0.0
*
* @see __return_false()
*
* @return true True.
*/
function __return_true() { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionDoubleUnderscore,PHPCompatibility.FunctionNameRestrictions.ReservedFunctionNames.FunctionDoubleUnderscore
return true;
}
/**
* Returns false.
*
* Useful for returning false to filters easily.
*
* @since 3.0.0
*
* @see __return_true()
*
* @return false False.
*/
function __return_false() { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionDoubleUnderscore,PHPCompatibility.FunctionNameRestrictions.ReservedFunctionNames.FunctionDoubleUnderscore
return false;
}
/**
* Returns 0.
*
* Useful for returning 0 to filters easily.
*
* @since 3.0.0
*
* @return int 0.
*/
function __return_zero() { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionDoubleUnderscore,PHPCompatibility.FunctionNameRestrictions.ReservedFunctionNames.FunctionDoubleUnderscore
return 0;
}
/**
* Returns an empty array.
*
* Useful for returning an empty array to filters easily.
*
* @since 3.0.0
*
* @return array Empty array.
*/
function __return_empty_array() { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionDoubleUnderscore,PHPCompatibility.FunctionNameRestrictions.ReservedFunctionNames.FunctionDoubleUnderscore
return array();
}
/**
* Returns null.
*
* Useful for returning null to filters easily.
*
* @since 3.4.0
*
* @return null Null value.
*/
function __return_null() { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionDoubleUnderscore,PHPCompatibility.FunctionNameRestrictions.ReservedFunctionNames.FunctionDoubleUnderscore
return null;
}
/**
* Returns an empty string.
*
* Useful for returning an empty string to filters easily.
*
* @since 3.7.0
*
* @see __return_null()
*
* @return string Empty string.
*/
function __return_empty_string() { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionDoubleUnderscore,PHPCompatibility.FunctionNameRestrictions.ReservedFunctionNames.FunctionDoubleUnderscore
return '';
}
/**
* Send a HTTP header to disable content type sniffing in browsers which support it.
*
* @since 3.0.0
*
* @see https://blogs.msdn.com/ie/archive/2008/07/02/ie8-security-part-v-comprehensive-protection.aspx
* @see https://src.chromium.org/viewvc/chrome?view=rev&revision=6985
*/
function send_nosniff_header() {
header( 'X-Content-Type-Options: nosniff' );
}
/**
* Return a MySQL expression for selecting the week number based on the start_of_week option.
*
* @ignore
* @since 3.0.0
*
* @param string $column Database column.
* @return string SQL clause.
*/
function _wp_mysql_week( $column ) {
$start_of_week = (int) get_option( 'start_of_week' );
switch ( $start_of_week ) {
case 1:
return "WEEK( $column, 1 )";
case 2:
case 3:
case 4:
case 5:
case 6:
return "WEEK( DATE_SUB( $column, INTERVAL $start_of_week DAY ), 0 )";
case 0:
default:
return "WEEK( $column, 0 )";
}
}
/**
* Find hierarchy loops using a callback function that maps object IDs to parent IDs.
*
* @since 3.1.0
* @access private
*
* @param callable $callback Function that accepts ( ID, $callback_args ) and outputs parent_ID.
* @param int $start The ID to start the loop check at.
* @param int $start_parent The parent_ID of $start to use instead of calling $callback( $start ).
* Use null to always use $callback
* @param array $callback_args Optional. Additional arguments to send to $callback.
* @return array IDs of all members of loop.
*/
function wp_find_hierarchy_loop( $callback, $start, $start_parent, $callback_args = array() ) {
$override = is_null( $start_parent ) ? array() : array( $start => $start_parent );
$arbitrary_loop_member = wp_find_hierarchy_loop_tortoise_hare( $callback, $start, $override, $callback_args );
if ( ! $arbitrary_loop_member ) {
return array();
}
return wp_find_hierarchy_loop_tortoise_hare( $callback, $arbitrary_loop_member, $override, $callback_args, true );
}
/**
* Use the "The Tortoise and the Hare" algorithm to detect loops.
*
* For every step of the algorithm, the hare takes two steps and the tortoise one.
* If the hare ever laps the tortoise, there must be a loop.
*
* @since 3.1.0
* @access private
*
* @param callable $callback Function that accepts ( ID, callback_arg, ... ) and outputs parent_ID.
* @param int $start The ID to start the loop check at.
* @param array $override Optional. An array of ( ID => parent_ID, ... ) to use instead of $callback.
* Default empty array.
* @param array $callback_args Optional. Additional arguments to send to $callback. Default empty array.
* @param bool $_return_loop Optional. Return loop members or just detect presence of loop? Only set
* to true if you already know the given $start is part of a loop (otherwise
* the returned array might include branches). Default false.
* @return mixed Scalar ID of some arbitrary member of the loop, or array of IDs of all members of loop if
* $_return_loop
*/
function wp_find_hierarchy_loop_tortoise_hare( $callback, $start, $override = array(), $callback_args = array(), $_return_loop = false ) {
$tortoise = $start;
$hare = $start;
$evanescent_hare = $start;
$return = array();
// Set evanescent_hare to one past hare.
// Increment hare two steps.
while (
$tortoise
&&
( $evanescent_hare = isset( $override[ $hare ] ) ? $override[ $hare ] : call_user_func_array( $callback, array_merge( array( $hare ), $callback_args ) ) )
&&
( $hare = isset( $override[ $evanescent_hare ] ) ? $override[ $evanescent_hare ] : call_user_func_array( $callback, array_merge( array( $evanescent_hare ), $callback_args ) ) )
) {
if ( $_return_loop ) {
$return[ $tortoise ] = true;
$return[ $evanescent_hare ] = true;
$return[ $hare ] = true;
}
// Tortoise got lapped - must be a loop.
if ( $tortoise == $evanescent_hare || $tortoise == $hare ) {
return $_return_loop ? $return : $tortoise;
}
// Increment tortoise by one step.
$tortoise = isset( $override[ $tortoise ] ) ? $override[ $tortoise ] : call_user_func_array( $callback, array_merge( array( $tortoise ), $callback_args ) );
}
return false;
}
/**
* Send a HTTP header to limit rendering of pages to same origin iframes.
*
* @since 3.1.3
*
* @see https://developer.mozilla.org/en/the_x-frame-options_response_header
*/
function send_frame_options_header() {
header( 'X-Frame-Options: SAMEORIGIN' );
}
/**
* Retrieve a list of protocols to allow in HTML attributes.
*
* @since 3.3.0
* @since 4.3.0 Added 'webcal' to the protocols array.
* @since 4.7.0 Added 'urn' to the protocols array.
* @since 5.3.0 Added 'sms' to the protocols array.
*
* @see wp_kses()
* @see esc_url()
*
* @staticvar array $protocols
*
* @return string[] Array of allowed protocols. Defaults to an array containing 'http', 'https',
* 'ftp', 'ftps', 'mailto', 'news', 'irc', 'gopher', 'nntp', 'feed', 'telnet',
* 'mms', 'rtsp', 'sms', 'svn', 'tel', 'fax', 'xmpp', 'webcal', and 'urn'.
* This covers all common link protocols, except for 'javascript' which should not
* be allowed for untrusted users.
*/
function wp_allowed_protocols() {
static $protocols = array();
if ( empty( $protocols ) ) {
$protocols = array( 'http', 'https', 'ftp', 'ftps', 'mailto', 'news', 'irc', 'gopher', 'nntp', 'feed', 'telnet', 'mms', 'rtsp', 'sms', 'svn', 'tel', 'fax', 'xmpp', 'webcal', 'urn' );
}
if ( ! did_action( 'wp_loaded' ) ) {
/**
* Filters the list of protocols allowed in HTML attributes.
*
* @since 3.0.0
*
* @param string[] $protocols Array of allowed protocols e.g. 'http', 'ftp', 'tel', and more.
*/
$protocols = array_unique( (array) apply_filters( 'kses_allowed_protocols', $protocols ) );
}
return $protocols;
}
/**
* Return a comma-separated string of functions that have been called to get
* to the current point in code.
*
* @since 3.4.0
*
* @see https://core.trac.wordpress.org/ticket/19589
*
* @staticvar array $truncate_paths Array of paths to truncate.
*
* @param string $ignore_class Optional. A class to ignore all function calls within - useful
* when you want to just give info about the callee. Default null.
* @param int $skip_frames Optional. A number of stack frames to skip - useful for unwinding
* back to the source of the issue. Default 0.
* @param bool $pretty Optional. Whether or not you want a comma separated string or raw
* array returned. Default true.
* @return string|array Either a string containing a reversed comma separated trace or an array
* of individual calls.
*/
function wp_debug_backtrace_summary( $ignore_class = null, $skip_frames = 0, $pretty = true ) {
static $truncate_paths;
$trace = debug_backtrace( false );
$caller = array();
$check_class = ! is_null( $ignore_class );
$skip_frames++; // Skip this function.
if ( ! isset( $truncate_paths ) ) {
$truncate_paths = array(
wp_normalize_path( WP_CONTENT_DIR ),
wp_normalize_path( ABSPATH ),
);
}
foreach ( $trace as $call ) {
if ( $skip_frames > 0 ) {
$skip_frames--;
} elseif ( isset( $call['class'] ) ) {
if ( $check_class && $ignore_class == $call['class'] ) {
continue; // Filter out calls.
}
$caller[] = "{$call['class']}{$call['type']}{$call['function']}";
} else {
if ( in_array( $call['function'], array( 'do_action', 'apply_filters', 'do_action_ref_array', 'apply_filters_ref_array' ), true ) ) {
$caller[] = "{$call['function']}('{$call['args'][0]}')";
} elseif ( in_array( $call['function'], array( 'include', 'include_once', 'require', 'require_once' ), true ) ) {
$filename = isset( $call['args'][0] ) ? $call['args'][0] : '';
$caller[] = $call['function'] . "('" . str_replace( $truncate_paths, '', wp_normalize_path( $filename ) ) . "')";
} else {
$caller[] = $call['function'];
}
}
}
if ( $pretty ) {
return join( ', ', array_reverse( $caller ) );
} else {
return $caller;
}
}
/**
* Retrieve IDs that are not already present in the cache.
*
* @since 3.4.0
* @access private
*
* @param int[] $object_ids Array of IDs.
* @param string $cache_key The cache bucket to check against.
* @return int[] Array of IDs not present in the cache.
*/
function _get_non_cached_ids( $object_ids, $cache_key ) {
$non_cached_ids = array();
$cache_values = wp_cache_get_multiple( $object_ids, $cache_key );
foreach ( $cache_values as $id => $value ) {
if ( ! $value ) {
$non_cached_ids[] = (int) $id;
}
}
return $non_cached_ids;
}
/**
* Test if the current device has the capability to upload files.
*
* @since 3.4.0
* @access private
*
* @return bool Whether the device is able to upload files.
*/
function _device_can_upload() {
if ( ! wp_is_mobile() ) {
return true;
}
$ua = $_SERVER['HTTP_USER_AGENT'];
if ( strpos( $ua, 'iPhone' ) !== false
|| strpos( $ua, 'iPad' ) !== false
|| strpos( $ua, 'iPod' ) !== false ) {
return preg_match( '#OS ([\d_]+) like Mac OS X#', $ua, $version ) && version_compare( $version[1], '6', '>=' );
}
return true;
}
/**
* Test if a given path is a stream URL
*
* @since 3.5.0
*
* @param string $path The resource path or URL.
* @return bool True if the path is a stream URL.
*/
function wp_is_stream( $path ) {
$scheme_separator = strpos( $path, '://' );
if ( false === $scheme_separator ) {
// $path isn't a stream.
return false;
}
$stream = substr( $path, 0, $scheme_separator );
return in_array( $stream, stream_get_wrappers(), true );
}
/**
* Test if the supplied date is valid for the Gregorian calendar.
*
* @since 3.5.0
*
* @link https://www.php.net/manual/en/function.checkdate.php
*
* @param int $month Month number.
* @param int $day Day number.
* @param int $year Year number.
* @param string $source_date The date to filter.
* @return bool True if valid date, false if not valid date.
*/
function wp_checkdate( $month, $day, $year, $source_date ) {
/**
* Filters whether the given date is valid for the Gregorian calendar.
*
* @since 3.5.0
*
* @param bool $checkdate Whether the given date is valid.
* @param string $source_date Date to check.
*/
return apply_filters( 'wp_checkdate', checkdate( $month, $day, $year ), $source_date );
}
/**
* Load the auth check for monitoring whether the user is still logged in.
*
* Can be disabled with remove_action( 'admin_enqueue_scripts', 'wp_auth_check_load' );
*
* This is disabled for certain screens where a login screen could cause an
* inconvenient interruption. A filter called {@see 'wp_auth_check_load'} can be used
* for fine-grained control.
*
* @since 3.6.0
*/
function wp_auth_check_load() {
if ( ! is_admin() && ! is_user_logged_in() ) {
return;
}
if ( defined( 'IFRAME_REQUEST' ) ) {
return;
}
$screen = get_current_screen();
$hidden = array( 'update', 'update-network', 'update-core', 'update-core-network', 'upgrade', 'upgrade-network', 'network' );
$show = ! in_array( $screen->id, $hidden, true );
/**
* Filters whether to load the authentication check.
*
* Passing a falsey value to the filter will effectively short-circuit
* loading the authentication check.
*
* @since 3.6.0
*
* @param bool $show Whether to load the authentication check.
* @param WP_Screen $screen The current screen object.
*/
if ( apply_filters( 'wp_auth_check_load', $show, $screen ) ) {
wp_enqueue_style( 'wp-auth-check' );
wp_enqueue_script( 'wp-auth-check' );
add_action( 'admin_print_footer_scripts', 'wp_auth_check_html', 5 );
add_action( 'wp_print_footer_scripts', 'wp_auth_check_html', 5 );
}
}
/**
* Output the HTML that shows the wp-login dialog when the user is no longer logged in.
*
* @since 3.6.0
*/
function wp_auth_check_html() {
$login_url = wp_login_url();
$current_domain = ( is_ssl() ? 'https://' : 'http://' ) . $_SERVER['HTTP_HOST'];
$same_domain = ( strpos( $login_url, $current_domain ) === 0 );
/**
* Filters whether the authentication check originated at the same domain.
*
* @since 3.6.0
*
* @param bool $same_domain Whether the authentication check originated at the same domain.
*/
$same_domain = apply_filters( 'wp_auth_check_same_domain', $same_domain );
$wrap_class = $same_domain ? 'hidden' : 'hidden fallback';
?>
[\s\S]*<\/%1$s>|\s*\/>)', tag_escape( $tag ) );
}
/**
* Retrieve a canonical form of the provided charset appropriate for passing to PHP
* functions such as htmlspecialchars() and charset html attributes.
*
* @since 3.6.0
* @access private
*
* @see https://core.trac.wordpress.org/ticket/23688
*
* @param string $charset A charset name.
* @return string The canonical form of the charset.
*/
function _canonical_charset( $charset ) {
if ( 'utf-8' === strtolower( $charset ) || 'utf8' === strtolower( $charset ) ) {
return 'UTF-8';
}
if ( 'iso-8859-1' === strtolower( $charset ) || 'iso8859-1' === strtolower( $charset ) ) {
return 'ISO-8859-1';
}
return $charset;
}
/**
* Set the mbstring internal encoding to a binary safe encoding when func_overload
* is enabled.
*
* When mbstring.func_overload is in use for multi-byte encodings, the results from
* strlen() and similar functions respect the utf8 characters, causing binary data
* to return incorrect lengths.
*
* This function overrides the mbstring encoding to a binary-safe encoding, and
* resets it to the users expected encoding afterwards through the
* `reset_mbstring_encoding` function.
*
* It is safe to recursively call this function, however each
* `mbstring_binary_safe_encoding()` call must be followed up with an equal number
* of `reset_mbstring_encoding()` calls.
*
* @since 3.7.0
*
* @see reset_mbstring_encoding()
*
* @staticvar array $encodings
* @staticvar bool $overloaded
*
* @param bool $reset Optional. Whether to reset the encoding back to a previously-set encoding.
* Default false.
*/
function mbstring_binary_safe_encoding( $reset = false ) {
static $encodings = array();
static $overloaded = null;
if ( is_null( $overloaded ) ) {
$overloaded = function_exists( 'mb_internal_encoding' ) && ( ini_get( 'mbstring.func_overload' ) & 2 ); // phpcs:ignore PHPCompatibility.IniDirectives.RemovedIniDirectives.mbstring_func_overloadDeprecated
}
if ( false === $overloaded ) {
return;
}
if ( ! $reset ) {
$encoding = mb_internal_encoding();
array_push( $encodings, $encoding );
mb_internal_encoding( 'ISO-8859-1' );
}
if ( $reset && $encodings ) {
$encoding = array_pop( $encodings );
mb_internal_encoding( $encoding );
}
}
/**
* Reset the mbstring internal encoding to a users previously set encoding.
*
* @see mbstring_binary_safe_encoding()
*
* @since 3.7.0
*/
function reset_mbstring_encoding() {
mbstring_binary_safe_encoding( true );
}
/**
* Filter/validate a variable as a boolean.
*
* Alternative to `filter_var( $var, FILTER_VALIDATE_BOOLEAN )`.
*
* @since 4.0.0
*
* @param mixed $var Boolean value to validate.
* @return bool Whether the value is validated.
*/
function wp_validate_boolean( $var ) {
if ( is_bool( $var ) ) {
return $var;
}
if ( is_string( $var ) && 'false' === strtolower( $var ) ) {
return false;
}
return (bool) $var;
}
/**
* Delete a file
*
* @since 4.2.0
*
* @param string $file The path to the file to delete.
*/
function wp_delete_file( $file ) {
/**
* Filters the path of the file to delete.
*
* @since 2.1.0
*
* @param string $file Path to the file to delete.
*/
$delete = apply_filters( 'wp_delete_file', $file );
if ( ! empty( $delete ) ) {
@unlink( $delete );
}
}
/**
* Deletes a file if its path is within the given directory.
*
* @since 4.9.7
*
* @param string $file Absolute path to the file to delete.
* @param string $directory Absolute path to a directory.
* @return bool True on success, false on failure.
*/
function wp_delete_file_from_directory( $file, $directory ) {
if ( wp_is_stream( $file ) ) {
$real_file = $file;
$real_directory = $directory;
} else {
$real_file = realpath( wp_normalize_path( $file ) );
$real_directory = realpath( wp_normalize_path( $directory ) );
}
if ( false !== $real_file ) {
$real_file = wp_normalize_path( $real_file );
}
if ( false !== $real_directory ) {
$real_directory = wp_normalize_path( $real_directory );
}
if ( false === $real_file || false === $real_directory || strpos( $real_file, trailingslashit( $real_directory ) ) !== 0 ) {
return false;
}
wp_delete_file( $file );
return true;
}
/**
* Outputs a small JS snippet on preview tabs/windows to remove `window.name` on unload.
*
* This prevents reusing the same tab for a preview when the user has navigated away.
*
* @since 4.3.0
*
* @global WP_Post $post Global post object.
*/
function wp_post_preview_js() {
global $post;
if ( ! is_preview() || empty( $post ) ) {
return;
}
// Has to match the window name used in post_submit_meta_box().
$name = 'wp-preview-' . (int) $post->ID;
?>
$wp_max_limit_int && $filtered_limit_int > $current_limit_int ) ) {
if ( false !== ini_set( 'memory_limit', $filtered_limit ) ) {
return $filtered_limit;
} else {
return false;
}
} elseif ( -1 === $wp_max_limit_int || $wp_max_limit_int > $current_limit_int ) {
if ( false !== ini_set( 'memory_limit', $wp_max_limit ) ) {
return $wp_max_limit;
} else {
return false;
}
}
return false;
}
/**
* Generate a random UUID (version 4).
*
* @since 4.7.0
*
* @return string UUID.
*/
function wp_generate_uuid4() {
return sprintf(
'%04x%04x-%04x-%04x-%04x-%04x%04x%04x',
mt_rand( 0, 0xffff ),
mt_rand( 0, 0xffff ),
mt_rand( 0, 0xffff ),
mt_rand( 0, 0x0fff ) | 0x4000,
mt_rand( 0, 0x3fff ) | 0x8000,
mt_rand( 0, 0xffff ),
mt_rand( 0, 0xffff ),
mt_rand( 0, 0xffff )
);
}
/**
* Validates that a UUID is valid.
*
* @since 4.9.0
*
* @param mixed $uuid UUID to check.
* @param int $version Specify which version of UUID to check against. Default is none,
* to accept any UUID version. Otherwise, only version allowed is `4`.
* @return bool The string is a valid UUID or false on failure.
*/
function wp_is_uuid( $uuid, $version = null ) {
if ( ! is_string( $uuid ) ) {
return false;
}
if ( is_numeric( $version ) ) {
if ( 4 !== (int) $version ) {
_doing_it_wrong( __FUNCTION__, __( 'Only UUID V4 is supported at this time.' ), '4.9.0' );
return false;
}
$regex = '/^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/';
} else {
$regex = '/^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/';
}
return (bool) preg_match( $regex, $uuid );
}
/**
* Get unique ID.
*
* This is a PHP implementation of Underscore's uniqueId method. A static variable
* contains an integer that is incremented with each call. This number is returned
* with the optional prefix. As such the returned value is not universally unique,
* but it is unique across the life of the PHP process.
*
* @since 5.0.3
*
* @staticvar int $id_counter
*
* @param string $prefix Prefix for the returned ID.
* @return string Unique ID.
*/
function wp_unique_id( $prefix = '' ) {
static $id_counter = 0;
return $prefix . (string) ++$id_counter;
}
/**
* Get last changed date for the specified cache group.
*
* @since 4.7.0
*
* @param string $group Where the cache contents are grouped.
*
* @return string UNIX timestamp with microseconds representing when the group was last changed.
*/
function wp_cache_get_last_changed( $group ) {
$last_changed = wp_cache_get( 'last_changed', $group );
if ( ! $last_changed ) {
$last_changed = microtime();
wp_cache_set( 'last_changed', $last_changed, $group );
}
return $last_changed;
}
/**
* Send an email to the old site admin email address when the site admin email address changes.
*
* @since 4.9.0
*
* @param string $old_email The old site admin email address.
* @param string $new_email The new site admin email address.
* @param string $option_name The relevant database option name.
*/
function wp_site_admin_email_change_notification( $old_email, $new_email, $option_name ) {
$send = true;
// Don't send the notification to the default 'admin_email' value.
if ( 'you@example.com' === $old_email ) {
$send = false;
}
/**
* Filters whether to send the site admin email change notification email.
*
* @since 4.9.0
*
* @param bool $send Whether to send the email notification.
* @param string $old_email The old site admin email address.
* @param string $new_email The new site admin email address.
*/
$send = apply_filters( 'send_site_admin_email_change_email', $send, $old_email, $new_email );
if ( ! $send ) {
return;
}
/* translators: Do not translate OLD_EMAIL, NEW_EMAIL, SITENAME, SITEURL: those are placeholders. */
$email_change_text = __(
'Hi,
This notice confirms that the admin email address was changed on ###SITENAME###.
The new admin email address is ###NEW_EMAIL###.
This email has been sent to ###OLD_EMAIL###
Regards,
All at ###SITENAME###
###SITEURL###'
);
$email_change_email = array(
'to' => $old_email,
/* translators: Site admin email change notification email subject. %s: Site title. */
'subject' => __( '[%s] Admin Email Changed' ),
'message' => $email_change_text,
'headers' => '',
);
// Get site name.
$site_name = wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES );
/**
* Filters the contents of the email notification sent when the site admin email address is changed.
*
* @since 4.9.0
*
* @param array $email_change_email {
* Used to build wp_mail().
*
* @type string $to The intended recipient.
* @type string $subject The subject of the email.
* @type string $message The content of the email.
* The following strings have a special meaning and will get replaced dynamically:
* - ###OLD_EMAIL### The old site admin email address.
* - ###NEW_EMAIL### The new site admin email address.
* - ###SITENAME### The name of the site.
* - ###SITEURL### The URL to the site.
* @type string $headers Headers.
* }
* @param string $old_email The old site admin email address.
* @param string $new_email The new site admin email address.
*/
$email_change_email = apply_filters( 'site_admin_email_change_email', $email_change_email, $old_email, $new_email );
$email_change_email['message'] = str_replace( '###OLD_EMAIL###', $old_email, $email_change_email['message'] );
$email_change_email['message'] = str_replace( '###NEW_EMAIL###', $new_email, $email_change_email['message'] );
$email_change_email['message'] = str_replace( '###SITENAME###', $site_name, $email_change_email['message'] );
$email_change_email['message'] = str_replace( '###SITEURL###', home_url(), $email_change_email['message'] );
wp_mail(
$email_change_email['to'],
sprintf(
$email_change_email['subject'],
$site_name
),
$email_change_email['message'],
$email_change_email['headers']
);
}
/**
* Return an anonymized IPv4 or IPv6 address.
*
* @since 4.9.6 Abstracted from `WP_Community_Events::get_unsafe_client_ip()`.
*
* @param string $ip_addr The IPv4 or IPv6 address to be anonymized.
* @param bool $ipv6_fallback Optional. Whether to return the original IPv6 address if the needed functions
* to anonymize it are not present. Default false, return `::` (unspecified address).
* @return string The anonymized IP address.
*/
function wp_privacy_anonymize_ip( $ip_addr, $ipv6_fallback = false ) {
// Detect what kind of IP address this is.
$ip_prefix = '';
$is_ipv6 = substr_count( $ip_addr, ':' ) > 1;
$is_ipv4 = ( 3 === substr_count( $ip_addr, '.' ) );
if ( $is_ipv6 && $is_ipv4 ) {
// IPv6 compatibility mode, temporarily strip the IPv6 part, and treat it like IPv4.
$ip_prefix = '::ffff:';
$ip_addr = preg_replace( '/^\[?[0-9a-f:]*:/i', '', $ip_addr );
$ip_addr = str_replace( ']', '', $ip_addr );
$is_ipv6 = false;
}
if ( $is_ipv6 ) {
// IPv6 addresses will always be enclosed in [] if there's a port.
$left_bracket = strpos( $ip_addr, '[' );
$right_bracket = strpos( $ip_addr, ']' );
$percent = strpos( $ip_addr, '%' );
$netmask = 'ffff:ffff:ffff:ffff:0000:0000:0000:0000';
// Strip the port (and [] from IPv6 addresses), if they exist.
if ( false !== $left_bracket && false !== $right_bracket ) {
$ip_addr = substr( $ip_addr, $left_bracket + 1, $right_bracket - $left_bracket - 1 );
} elseif ( false !== $left_bracket || false !== $right_bracket ) {
// The IP has one bracket, but not both, so it's malformed.
return '::';
}
// Strip the reachability scope.
if ( false !== $percent ) {
$ip_addr = substr( $ip_addr, 0, $percent );
}
// No invalid characters should be left.
if ( preg_match( '/[^0-9a-f:]/i', $ip_addr ) ) {
return '::';
}
// Partially anonymize the IP by reducing it to the corresponding network ID.
if ( function_exists( 'inet_pton' ) && function_exists( 'inet_ntop' ) ) {
$ip_addr = inet_ntop( inet_pton( $ip_addr ) & inet_pton( $netmask ) );
if ( false === $ip_addr ) {
return '::';
}
} elseif ( ! $ipv6_fallback ) {
return '::';
}
} elseif ( $is_ipv4 ) {
// Strip any port and partially anonymize the IP.
$last_octet_position = strrpos( $ip_addr, '.' );
$ip_addr = substr( $ip_addr, 0, $last_octet_position ) . '.0';
} else {
return '0.0.0.0';
}
// Restore the IPv6 prefix to compatibility mode addresses.
return $ip_prefix . $ip_addr;
}
/**
* Return uniform "anonymous" data by type.
*
* @since 4.9.6
*
* @param string $type The type of data to be anonymized.
* @param string $data Optional The data to be anonymized.
* @return string The anonymous data for the requested type.
*/
function wp_privacy_anonymize_data( $type, $data = '' ) {
switch ( $type ) {
case 'email':
$anonymous = 'deleted@site.invalid';
break;
case 'url':
$anonymous = 'https://site.invalid';
break;
case 'ip':
$anonymous = wp_privacy_anonymize_ip( $data );
break;
case 'date':
$anonymous = '0000-00-00 00:00:00';
break;
case 'text':
/* translators: Deleted text. */
$anonymous = __( '[deleted]' );
break;
case 'longtext':
/* translators: Deleted long text. */
$anonymous = __( 'This content was deleted by the author.' );
break;
default:
$anonymous = '';
break;
}
/**
* Filters the anonymous data for each type.
*
* @since 4.9.6
*
* @param string $anonymous Anonymized data.
* @param string $type Type of the data.
* @param string $data Original data.
*/
return apply_filters( 'wp_privacy_anonymize_data', $anonymous, $type, $data );
}
/**
* Returns the directory used to store personal data export files.
*
* @since 4.9.6
*
* @see wp_privacy_exports_url
*
* @return string Exports directory.
*/
function wp_privacy_exports_dir() {
$upload_dir = wp_upload_dir();
$exports_dir = trailingslashit( $upload_dir['basedir'] ) . 'wp-personal-data-exports/';
/**
* Filters the directory used to store personal data export files.
*
* @since 4.9.6
*
* @param string $exports_dir Exports directory.
*/
return apply_filters( 'wp_privacy_exports_dir', $exports_dir );
}
/**
* Returns the URL of the directory used to store personal data export files.
*
* @since 4.9.6
*
* @see wp_privacy_exports_dir
*
* @return string Exports directory URL.
*/
function wp_privacy_exports_url() {
$upload_dir = wp_upload_dir();
$exports_url = trailingslashit( $upload_dir['baseurl'] ) . 'wp-personal-data-exports/';
/**
* Filters the URL of the directory used to store personal data export files.
*
* @since 4.9.6
*
* @param string $exports_url Exports directory URL.
*/
return apply_filters( 'wp_privacy_exports_url', $exports_url );
}
/**
* Schedule a `WP_Cron` job to delete expired export files.
*
* @since 4.9.6
*/
function wp_schedule_delete_old_privacy_export_files() {
if ( wp_installing() ) {
return;
}
if ( ! wp_next_scheduled( 'wp_privacy_delete_old_export_files' ) ) {
wp_schedule_event( time(), 'hourly', 'wp_privacy_delete_old_export_files' );
}
}
/**
* Cleans up export files older than three days old.
*
* The export files are stored in `wp-content/uploads`, and are therefore publicly
* accessible. A CSPRN is appended to the filename to mitigate the risk of an
* unauthorized person downloading the file, but it is still possible. Deleting
* the file after the data subject has had a chance to delete it adds an additional
* layer of protection.
*
* @since 4.9.6
*/
function wp_privacy_delete_old_export_files() {
$exports_dir = wp_privacy_exports_dir();
if ( ! is_dir( $exports_dir ) ) {
return;
}
require_once ABSPATH . 'wp-admin/includes/file.php';
$export_files = list_files( $exports_dir, 100, array( 'index.html' ) );
/**
* Filters the lifetime, in seconds, of a personal data export file.
*
* By default, the lifetime is 3 days. Once the file reaches that age, it will automatically
* be deleted by a cron job.
*
* @since 4.9.6
*
* @param int $expiration The expiration age of the export, in seconds.
*/
$expiration = apply_filters( 'wp_privacy_export_expiration', 3 * DAY_IN_SECONDS );
foreach ( (array) $export_files as $export_file ) {
$file_age_in_seconds = time() - filemtime( $export_file );
if ( $expiration < $file_age_in_seconds ) {
unlink( $export_file );
}
}
}
/**
* Gets the URL to learn more about updating the PHP version the site is running on.
*
* This URL can be overridden by specifying an environment variable `WP_UPDATE_PHP_URL` or by using the
* {@see 'wp_update_php_url'} filter. Providing an empty string is not allowed and will result in the
* default URL being used. Furthermore the page the URL links to should preferably be localized in the
* site language.
*
* @since 5.1.0
*
* @return string URL to learn more about updating PHP.
*/
function wp_get_update_php_url() {
$default_url = wp_get_default_update_php_url();
$update_url = $default_url;
if ( false !== getenv( 'WP_UPDATE_PHP_URL' ) ) {
$update_url = getenv( 'WP_UPDATE_PHP_URL' );
}
/**
* Filters the URL to learn more about updating the PHP version the site is running on.
*
* Providing an empty string is not allowed and will result in the default URL being used. Furthermore
* the page the URL links to should preferably be localized in the site language.
*
* @since 5.1.0
*
* @param string $update_url URL to learn more about updating PHP.
*/
$update_url = apply_filters( 'wp_update_php_url', $update_url );
if ( empty( $update_url ) ) {
$update_url = $default_url;
}
return $update_url;
}
/**
* Gets the default URL to learn more about updating the PHP version the site is running on.
*
* Do not use this function to retrieve this URL. Instead, use {@see wp_get_update_php_url()} when relying on the URL.
* This function does not allow modifying the returned URL, and is only used to compare the actually used URL with the
* default one.
*
* @since 5.1.0
* @access private
*
* @return string Default URL to learn more about updating PHP.
*/
function wp_get_default_update_php_url() {
return _x( 'https://wordpress.org/support/update-php/', 'localized PHP upgrade information page' );
}
/**
* Prints the default annotation for the web host altering the "Update PHP" page URL.
*
* This function is to be used after {@see wp_get_update_php_url()} to display a consistent
* annotation if the web host has altered the default "Update PHP" page URL.
*
* @since 5.1.0
* @since 5.2.0 Added the `$before` and `$after` parameters.
*
* @param string $before Markup to output before the annotation. Default ``. * @param string $after Markup to output after the annotation. Default `
`. */ function wp_update_php_annotation( $before = '', $after = '
' ) { $annotation = wp_get_update_php_annotation(); if ( $annotation ) { echo $before . $annotation . $after; } } /** * Returns the default annotation for the web hosting altering the "Update PHP" page URL. * * This function is to be used after {@see wp_get_update_php_url()} to return a consistent * annotation if the web host has altered the default "Update PHP" page URL. * * @since 5.2.0 * * @return string Update PHP page annotation. An empty string if no custom URLs are provided. */ function wp_get_update_php_annotation() { $update_url = wp_get_update_php_url(); $default_url = wp_get_default_update_php_url(); if ( $update_url === $default_url ) { return ''; } $annotation = sprintf( /* translators: %s: Default Update PHP page URL. */ __( 'This resource is provided by your web host, and is specific to your site. For more information, see the official WordPress documentation.' ), esc_url( $default_url ) ); return $annotation; } /** * Gets the URL for directly updating the PHP version the site is running on. * * A URL will only be returned if the `WP_DIRECT_UPDATE_PHP_URL` environment variable is specified or * by using the {@see 'wp_direct_php_update_url'} filter. This allows hosts to send users directly to * the page where they can update PHP to a newer version. * * @since 5.1.1 * * @return string URL for directly updating PHP or empty string. */ function wp_get_direct_php_update_url() { $direct_update_url = ''; if ( false !== getenv( 'WP_DIRECT_UPDATE_PHP_URL' ) ) { $direct_update_url = getenv( 'WP_DIRECT_UPDATE_PHP_URL' ); } /** * Filters the URL for directly updating the PHP version the site is running on from the host. * * @since 5.1.1 * * @param string $direct_update_url URL for directly updating PHP. */ $direct_update_url = apply_filters( 'wp_direct_php_update_url', $direct_update_url ); return $direct_update_url; } /** * Display a button directly linking to a PHP update process. * * This provides hosts with a way for users to be sent directly to their PHP update process. * * The button is only displayed if a URL is returned by `wp_get_direct_php_update_url()`. * * @since 5.1.1 */ function wp_direct_php_update_button() { $direct_update_url = wp_get_direct_php_update_url(); if ( empty( $direct_update_url ) ) { return; } echo ' '; } /** * Get the size of a directory. * * A helper function that is used primarily to check whether * a blog has exceeded its allowed upload space. * * @since MU (3.0.0) * @since 5.2.0 $max_execution_time parameter added. * * @param string $directory Full path of a directory. * @param int $max_execution_time Maximum time to run before giving up. In seconds. * The timeout is global and is measured from the moment WordPress started to load. * @return int|false|null Size in bytes if a valid directory. False if not. Null if timeout. */ function get_dirsize( $directory, $max_execution_time = null ) { $dirsize = get_transient( 'dirsize_cache' ); if ( is_array( $dirsize ) && isset( $dirsize[ $directory ]['size'] ) ) { return $dirsize[ $directory ]['size']; } if ( ! is_array( $dirsize ) ) { $dirsize = array(); } // Exclude individual site directories from the total when checking the main site of a network, // as they are subdirectories and should not be counted. if ( is_multisite() && is_main_site() ) { $dirsize[ $directory ]['size'] = recurse_dirsize( $directory, $directory . '/sites', $max_execution_time ); } else { $dirsize[ $directory ]['size'] = recurse_dirsize( $directory, null, $max_execution_time ); } set_transient( 'dirsize_cache', $dirsize, HOUR_IN_SECONDS ); return $dirsize[ $directory ]['size']; } /** * Get the size of a directory recursively. * * Used by get_dirsize() to get a directory's size when it contains * other directories. * * @since MU (3.0.0) * @since 4.3.0 $exclude parameter added. * @since 5.2.0 $max_execution_time parameter added. * * @param string $directory Full path of a directory. * @param string|array $exclude Optional. Full path of a subdirectory to exclude from the total, or array of paths. * Expected without trailing slash(es). * @param int $max_execution_time Maximum time to run before giving up. In seconds. * The timeout is global and is measured from the moment WordPress started to load. * @return int|false|null Size in bytes if a valid directory. False if not. Null if timeout. */ function recurse_dirsize( $directory, $exclude = null, $max_execution_time = null ) { $size = 0; $directory = untrailingslashit( $directory ); if ( ! file_exists( $directory ) || ! is_dir( $directory ) || ! is_readable( $directory ) ) { return false; } if ( ( is_string( $exclude ) && $directory === $exclude ) || ( is_array( $exclude ) && in_array( $directory, $exclude, true ) ) ) { return false; } if ( null === $max_execution_time ) { // Keep the previous behavior but attempt to prevent fatal errors from timeout if possible. if ( function_exists( 'ini_get' ) ) { $max_execution_time = ini_get( 'max_execution_time' ); } else { // Disable... $max_execution_time = 0; } // Leave 1 second "buffer" for other operations if $max_execution_time has reasonable value. if ( $max_execution_time > 10 ) { $max_execution_time -= 1; } } $handle = opendir( $directory ); if ( $handle ) { while ( ( $file = readdir( $handle ) ) !== false ) { $path = $directory . '/' . $file; if ( '.' !== $file && '..' !== $file ) { if ( is_file( $path ) ) { $size += filesize( $path ); } elseif ( is_dir( $path ) ) { $handlesize = recurse_dirsize( $path, $exclude, $max_execution_time ); if ( $handlesize > 0 ) { $size += $handlesize; } } if ( $max_execution_time > 0 && microtime( true ) - WP_START_TIMESTAMP > $max_execution_time ) { // Time exceeded. Give up instead of risking a fatal timeout. $size = null; break; } } } closedir( $handle ); } return $size; } /** * Checks compatibility with the current WordPress version. * * @since 5.2.0 * * @param string $required Minimum required WordPress version. * @return bool True if required version is compatible or empty, false if not. */ function is_wp_version_compatible( $required ) { return empty( $required ) || version_compare( get_bloginfo( 'version' ), $required, '>=' ); } /** * Checks compatibility with the current PHP version. * * @since 5.2.0 * * @param string $required Minimum required PHP version. * @return bool True if required version is compatible or empty, false if not. */ function is_php_version_compatible( $required ) { return empty( $required ) || version_compare( phpversion(), $required, '>=' ); } /** * Check if two numbers are nearly the same. * * This is similar to using `round()` but the precision is more fine-grained. * * @since 5.3.0 * * @param int|float $expected The expected value. * @param int|float $actual The actual number. * @param int|float $precision The allowed variation. * @return bool Whether the numbers match whithin the specified precision. */ function wp_fuzzy_number_match( $expected, $actual, $precision = 1 ) { return abs( (float) $expected - (float) $actual ) <= $precision; }