WordPress/wp-includes/functions.php

1604 lines
46 KiB
PHP

<?php
require_once(dirname(__FILE__).'/functions-compat.php');
if ( !function_exists('_') ) {
function _($string) {
return $string;
}
}
function get_profile($field, $user = false) {
global $wpdb;
if ( !$user )
$user = $wpdb->escape($_COOKIE[USER_COOKIE]);
return $wpdb->get_var("SELECT $field FROM $wpdb->users WHERE user_login = '$user'");
}
function mysql2date($dateformatstring, $mysqlstring, $translate = true) {
global $wp_locale;
$m = $mysqlstring;
if ( empty($m) ) {
return false;
}
$i = mktime(substr($m,11,2),substr($m,14,2),substr($m,17,2),substr($m,5,2),substr($m,8,2),substr($m,0,4));
if( 'U' == $dateformatstring )
return $i;
if ( -1 == $i || false == $i )
$i = 0;
if ( !empty($wp_locale->month) && !empty($wp_locale->weekday) && $translate ) {
$datemonth = $wp_locale->get_month(date('m', $i));
$datemonth_abbrev = $wp_locale->get_month_abbrev($datemonth);
$dateweekday = $wp_locale->get_weekday(date('w', $i));
$dateweekday_abbrev = $wp_locale->get_weekday_abbrev($dateweekday);
$datemeridiem = $wp_locale->get_meridiem(date('a', $i));
$datemeridiem_capital = $wp_locale->get_meridiem(date('A', $i));
$dateformatstring = ' '.$dateformatstring;
$dateformatstring = preg_replace("/([^\\\])D/", "\${1}".backslashit($dateweekday_abbrev), $dateformatstring);
$dateformatstring = preg_replace("/([^\\\])F/", "\${1}".backslashit($datemonth), $dateformatstring);
$dateformatstring = preg_replace("/([^\\\])l/", "\${1}".backslashit($dateweekday), $dateformatstring);
$dateformatstring = preg_replace("/([^\\\])M/", "\${1}".backslashit($datemonth_abbrev), $dateformatstring);
$dateformatstring = preg_replace("/([^\\\])a/", "\${1}".backslashit($datemeridiem), $dateformatstring);
$dateformatstring = preg_replace("/([^\\\])A/", "\${1}".backslashit($datemeridiem_capital), $dateformatstring);
$dateformatstring = substr($dateformatstring, 1, strlen($dateformatstring)-1);
}
$j = @date($dateformatstring, $i);
if ( !$j ) {
// for debug purposes
// echo $i." ".$mysqlstring;
}
return $j;
}
function current_time($type, $gmt = 0) {
switch ($type) {
case 'mysql':
if ( $gmt ) $d = gmdate('Y-m-d H:i:s');
else $d = gmdate('Y-m-d H:i:s', (time() + (get_settings('gmt_offset') * 3600)));
return $d;
break;
case 'timestamp':
if ( $gmt ) $d = time();
else $d = time() + (get_settings('gmt_offset') * 3600);
return $d;
break;
}
}
function date_i18n($dateformatstring, $unixtimestamp) {
global $wp_locale;
$i = $unixtimestamp;
if ( (!empty($wp_locale->month)) && (!empty($wp_locale->weekday)) ) {
$datemonth = $wp_locale->get_month(date('m', $i));
$datemonth_abbrev = $wp_locale->get_month_abbrev($datemonth);
$dateweekday = $wp_locale->get_weekday(date('w', $i));
$dateweekday_abbrev = $wp_locale->get_weekday_abbrev($dateweekday);
$datemeridiem = $wp_locale->get_meridiem(date('a', $i));
$datemeridiem_capital = $wp_locale->get_meridiem(date('A', $i));
$dateformatstring = ' '.$dateformatstring;
$dateformatstring = preg_replace("/([^\\\])D/", "\${1}".backslashit($dateweekday_abbrev), $dateformatstring);
$dateformatstring = preg_replace("/([^\\\])F/", "\${1}".backslashit($datemonth), $dateformatstring);
$dateformatstring = preg_replace("/([^\\\])l/", "\${1}".backslashit($dateweekday), $dateformatstring);
$dateformatstring = preg_replace("/([^\\\])M/", "\${1}".backslashit($datemonth_abbrev), $dateformatstring);
$dateformatstring = preg_replace("/([^\\\])a/", "\${1}".backslashit($datemeridiem), $dateformatstring);
$dateformatstring = preg_replace("/([^\\\])A/", "\${1}".backslashit($datemeridiem_capital), $dateformatstring);
$dateformatstring = substr($dateformatstring, 1, strlen($dateformatstring)-1);
}
$j = @date($dateformatstring, $i);
return $j;
}
function get_weekstartend($mysqlstring, $start_of_week) {
$my = substr($mysqlstring,0,4);
$mm = substr($mysqlstring,8,2);
$md = substr($mysqlstring,5,2);
$day = mktime(0,0,0, $md, $mm, $my);
$weekday = date('w',$day);
$i = 86400;
if ( $weekday < get_settings('start_of_week') )
$weekday = 7 - (get_settings('start_of_week') - $weekday);
while ($weekday > get_settings('start_of_week')) {
$weekday = date('w',$day);
if ( $weekday < get_settings('start_of_week') )
$weekday = 7 - (get_settings('start_of_week') - $weekday);
$day = $day - 86400;
$i = 0;
}
$week['start'] = $day + 86400 - $i;
// $week['end'] = $day - $i + 691199;
$week['end'] = $week['start'] + 604799;
return $week;
}
function get_lastpostdate($timezone = 'server') {
global $cache_lastpostdate, $pagenow, $wpdb;
$add_seconds_blog = get_settings('gmt_offset') * 3600;
$add_seconds_server = date('Z');
if ( !isset($cache_lastpostdate[$timezone]) ) {
switch(strtolower($timezone)) {
case 'gmt':
$lastpostdate = $wpdb->get_var("SELECT post_date_gmt FROM $wpdb->posts WHERE post_status = 'publish' ORDER BY post_date_gmt DESC LIMIT 1");
break;
case 'blog':
$lastpostdate = $wpdb->get_var("SELECT post_date FROM $wpdb->posts WHERE post_status = 'publish' ORDER BY post_date_gmt DESC LIMIT 1");
break;
case 'server':
$lastpostdate = $wpdb->get_var("SELECT DATE_ADD(post_date_gmt, INTERVAL '$add_seconds_server' SECOND) FROM $wpdb->posts WHERE post_status = 'publish' ORDER BY post_date_gmt DESC LIMIT 1");
break;
}
$cache_lastpostdate[$timezone] = $lastpostdate;
} else {
$lastpostdate = $cache_lastpostdate[$timezone];
}
return $lastpostdate;
}
function get_lastpostmodified($timezone = 'server') {
global $cache_lastpostmodified, $pagenow, $wpdb;
$add_seconds_blog = get_settings('gmt_offset') * 3600;
$add_seconds_server = date('Z');
if ( !isset($cache_lastpostmodified[$timezone]) ) {
switch(strtolower($timezone)) {
case 'gmt':
$lastpostmodified = $wpdb->get_var("SELECT post_modified_gmt FROM $wpdb->posts WHERE post_status = 'publish' ORDER BY post_modified_gmt DESC LIMIT 1");
break;
case 'blog':
$lastpostmodified = $wpdb->get_var("SELECT post_modified FROM $wpdb->posts WHERE post_status = 'publish' ORDER BY post_modified_gmt DESC LIMIT 1");
break;
case 'server':
$lastpostmodified = $wpdb->get_var("SELECT DATE_ADD(post_modified_gmt, INTERVAL '$add_seconds_server' SECOND) FROM $wpdb->posts WHERE post_status = 'publish' ORDER BY post_modified_gmt DESC LIMIT 1");
break;
}
$lastpostdate = get_lastpostdate($timezone);
if ( $lastpostdate > $lastpostmodified ) {
$lastpostmodified = $lastpostdate;
}
$cache_lastpostmodified[$timezone] = $lastpostmodified;
} else {
$lastpostmodified = $cache_lastpostmodified[$timezone];
}
return $lastpostmodified;
}
function user_pass_ok($user_login,$user_pass) {
global $cache_userdata;
if ( empty($cache_userdata[$user_login]) ) {
$userdata = get_userdatabylogin($user_login);
} else {
$userdata = $cache_userdata[$user_login];
}
return (md5($user_pass) == $userdata->user_pass);
}
function get_usernumposts($userid) {
global $wpdb;
return $wpdb->get_var("SELECT COUNT(*) FROM $wpdb->posts WHERE post_author = '$userid' AND post_type = 'post' AND post_status = 'publish'");
}
function maybe_unserialize($original) {
if ( false !== $gm = @ unserialize($original) )
return $gm;
else
return $original;
}
/* Options functions */
function get_settings($setting) {
global $wpdb;
$value = wp_cache_get($setting, 'options');
if ( false === $value ) {
if ( defined('WP_INSTALLING') )
$wpdb->hide_errors();
$row = $wpdb->get_row("SELECT option_value FROM $wpdb->options WHERE option_name = '$setting' LIMIT 1");
if ( defined('WP_INSTALLING') )
$wpdb->show_errors();
if( is_object( $row) ) { // Has to be get_row instead of get_var because of funkiness with 0, false, null values
$value = $row->option_value;
wp_cache_set($setting, $value, 'options');
} else {
return false;
}
}
// If home is not set use siteurl.
if ( 'home' == $setting && '' == $value )
return get_settings('siteurl');
if ( 'siteurl' == $setting || 'home' == $setting || 'category_base' == $setting )
$value = preg_replace('|/+$|', '', $value);
return apply_filters( 'option_' . $setting, maybe_unserialize($value) );
}
function get_option($option) {
return get_settings($option);
}
function get_user_option( $option, $user = 0 ) {
global $wpdb;
if ( empty($user) )
$user = wp_get_current_user();
else
$user = get_userdata($user);
if ( isset( $user->{$wpdb->prefix . $option} ) ) // Blog specific
return $user->{$wpdb->prefix . $option};
elseif ( isset( $user->{$option} ) ) // User specific and cross-blog
return $user->{$option};
else // Blog global
return get_option( $option );
}
function form_option($option) {
echo htmlspecialchars( get_option($option), ENT_QUOTES );
}
function get_alloptions() {
global $wpdb, $wp_queries;
$wpdb->hide_errors();
if ( !$options = $wpdb->get_results("SELECT option_name, option_value FROM $wpdb->options WHERE autoload = 'yes'") ) {
$options = $wpdb->get_results("SELECT option_name, option_value FROM $wpdb->options");
}
$wpdb->show_errors();
foreach ($options as $option) {
// "When trying to design a foolproof system,
// never underestimate the ingenuity of the fools :)" -- Dougal
if ( 'siteurl' == $option->option_name )
$option->option_value = preg_replace('|/+$|', '', $option->option_value);
if ( 'home' == $option->option_name )
$option->option_value = preg_replace('|/+$|', '', $option->option_value);
if ( 'category_base' == $option->option_name )
$option->option_value = preg_replace('|/+$|', '', $option->option_value);
$value = maybe_unserialize($option->option_value);
$all_options->{$option->option_name} = apply_filters('pre_option_' . $option->option_name, $value);
}
return apply_filters('all_options', $all_options);
}
function update_option($option_name, $newvalue) {
global $wpdb;
if ( is_string($newvalue) )
$newvalue = trim($newvalue);
// If the new and old values are the same, no need to update.
$oldvalue = get_option($option_name);
if ( $newvalue == $oldvalue ) {
return false;
}
if ( false === $oldvalue ) {
add_option($option_name, $newvalue);
return true;
}
$_newvalue = $newvalue;
if ( is_array($newvalue) || is_object($newvalue) )
$newvalue = serialize($newvalue);
wp_cache_set($option_name, $newvalue, 'options');
$newvalue = $wpdb->escape($newvalue);
$option_name = $wpdb->escape($option_name);
$wpdb->query("UPDATE $wpdb->options SET option_value = '$newvalue' WHERE option_name = '$option_name'");
if ( $wpdb->rows_affected == 1 ) {
do_action("update_option_{$option_name}", array('old'=>$oldvalue, 'new'=>$_newvalue));
return true;
}
return false;
}
function update_user_option( $user_id, $option_name, $newvalue, $global = false ) {
global $wpdb;
if ( !$global )
$option_name = $wpdb->prefix . $option_name;
return update_usermeta( $user_id, $option_name, $newvalue );
}
// thx Alex Stapleton, http://alex.vort-x.net/blog/
function add_option($name, $value = '', $description = '', $autoload = 'yes') {
global $wpdb;
// Make sure the option doesn't already exist
if ( false !== get_option($name) )
return;
if ( is_array($value) || is_object($value) )
$value = serialize($value);
wp_cache_set($name, $value, 'options');
$name = $wpdb->escape($name);
$value = $wpdb->escape($value);
$description = $wpdb->escape($description);
$wpdb->query("INSERT INTO $wpdb->options (option_name, option_value, option_description, autoload) VALUES ('$name', '$value', '$description', '$autoload')");
return;
}
function delete_option($name) {
global $wpdb;
// Get the ID, if no ID then return
$option_id = $wpdb->get_var("SELECT option_id FROM $wpdb->options WHERE option_name = '$name'");
if ( !$option_id ) return false;
$wpdb->query("DELETE FROM $wpdb->options WHERE option_name = '$name'");
wp_cache_delete($name, 'options');
return true;
}
function add_post_meta($post_id, $key, $value, $unique = false) {
global $wpdb, $post_meta_cache;
if ( $unique ) {
if ( $wpdb->get_var("SELECT meta_key FROM $wpdb->postmeta WHERE meta_key
= '$key' AND post_id = '$post_id'") ) {
return false;
}
}
$original = $value;
if ( is_array($value) || is_object($value) )
$value = $wpdb->escape(serialize($value));
$wpdb->query("INSERT INTO $wpdb->postmeta (post_id,meta_key,meta_value) VALUES ('$post_id','$key','$value')");
$post_meta_cache['$post_id'][$key][] = $original;
return true;
}
function delete_post_meta($post_id, $key, $value = '') {
global $wpdb, $post_meta_cache;
if ( empty($value) ) {
$meta_id = $wpdb->get_var("SELECT meta_id FROM $wpdb->postmeta WHERE
post_id = '$post_id' AND meta_key = '$key'");
} else {
$meta_id = $wpdb->get_var("SELECT meta_id FROM $wpdb->postmeta WHERE
post_id = '$post_id' AND meta_key = '$key' AND meta_value = '$value'");
}
if ( !$meta_id )
return false;
if ( empty($value) ) {
$wpdb->query("DELETE FROM $wpdb->postmeta WHERE post_id = '$post_id'
AND meta_key = '$key'");
unset($post_meta_cache['$post_id'][$key]);
} else {
$wpdb->query("DELETE FROM $wpdb->postmeta WHERE post_id = '$post_id'
AND meta_key = '$key' AND meta_value = '$value'");
$cache_key = $post_meta_cache['$post_id'][$key];
if ($cache_key) foreach ( $cache_key as $index => $data )
if ( $data == $value )
unset($post_meta_cache['$post_id'][$key][$index]);
}
unset($post_meta_cache['$post_id'][$key]);
return true;
}
function get_post_meta($post_id, $key, $single = false) {
global $wpdb, $post_meta_cache;
if ( isset($post_meta_cache[$post_id][$key]) ) {
if ( $single ) {
return maybe_unserialize( $post_meta_cache[$post_id][$key][0] );
} else {
return maybe_unserialize( $post_meta_cache[$post_id][$key] );
}
}
$metalist = $wpdb->get_results("SELECT meta_value FROM $wpdb->postmeta WHERE post_id = '$post_id' AND meta_key = '$key'", ARRAY_N);
$values = array();
if ( $metalist ) {
foreach ($metalist as $metarow) {
$values[] = $metarow[0];
}
}
if ( $single ) {
if ( count($values) ) {
$return = maybe_unserialize( $values[0] );
} else {
return '';
}
} else {
$return = $values;
}
return maybe_unserialize($return);
}
function update_post_meta($post_id, $key, $value, $prev_value = '') {
global $wpdb, $post_meta_cache;
$original_value = $value;
if ( is_array($value) || is_object($value) )
$value = $wpdb->escape(serialize($value));
$original_prev = $prev_value;
if ( is_array($prev_value) || is_object($prev_value) )
$prev_value = $wpdb->escape(serialize($prev_value));
if (! $wpdb->get_var("SELECT meta_key FROM $wpdb->postmeta WHERE meta_key
= '$key' AND post_id = '$post_id'") ) {
return false;
}
if ( empty($prev_value) ) {
$wpdb->query("UPDATE $wpdb->postmeta SET meta_value = '$value' WHERE
meta_key = '$key' AND post_id = '$post_id'");
$cache_key = $post_meta_cache['$post_id'][$key];
if ( !empty($cache_key) )
foreach ($cache_key as $index => $data)
$post_meta_cache['$post_id'][$key][$index] = $original_value;
} else {
$wpdb->query("UPDATE $wpdb->postmeta SET meta_value = '$value' WHERE
meta_key = '$key' AND post_id = '$post_id' AND meta_value = '$prev_value'");
$cache_key = $post_meta_cache['$post_id'][$key];
if ( !empty($cache_key) )
foreach ($cache_key as $index => $data)
if ( $data == $original_prev )
$post_meta_cache['$post_id'][$key][$index] = $original_value;
}
return true;
}
// Retrieves post data given a post ID or post object.
// Handles post caching.
function &get_post(&$post, $output = OBJECT) {
global $post_cache, $wpdb;
if ( empty($post) ) {
if ( isset($GLOBALS['post']) )
$_post = & $GLOBALS['post'];
else
$_post = null;
} elseif ( is_object($post) ) {
if ( 'page' == $post->post_type )
return get_page($post, $output);
if ( !isset($post_cache[$post->ID]) )
$post_cache[$post->ID] = &$post;
$_post = & $post_cache[$post->ID];
} else {
if ( $_post = wp_cache_get($post, 'pages') )
return get_page($_post, $output);
elseif ( isset($post_cache[$post]) )
$_post = & $post_cache[$post];
else {
$query = "SELECT * FROM $wpdb->posts WHERE ID = '$post' LIMIT 1";
$_post = & $wpdb->get_row($query);
if ( 'page' == $_post->post_type )
return get_page($_post, $output);
$post_cache[$post] = & $_post;
}
}
if ( defined(WP_IMPORTING) )
unset($post_cache);
if ( $output == OBJECT ) {
return $_post;
} elseif ( $output == ARRAY_A ) {
return get_object_vars($_post);
} elseif ( $output == ARRAY_N ) {
return array_values(get_object_vars($_post));
} else {
return $_post;
}
}
function &get_children($post = 0, $output = OBJECT) {
global $post_cache, $wpdb;
if ( empty($post) ) {
if ( isset($GLOBALS['post']) )
$post_parent = & $GLOBALS['post']->post_parent;
else
return false;
} elseif ( is_object($post) ) {
$post_parent = $post->post_parent;
} else {
$post_parent = $post;
}
$post_parent = (int) $post_parent;
$query = "SELECT * FROM $wpdb->posts WHERE post_parent = $post_parent";
$children = $wpdb->get_results($query);
if ( $children ) {
foreach ( $children as $key => $child ) {
$post_cache[$child->ID] =& $children[$key];
$kids[$child->ID] =& $children[$key];
}
} else {
return false;
}
if ( $output == OBJECT ) {
return $kids;
} elseif ( $output == ARRAY_A ) {
foreach ( $kids as $kid )
$weeuns[$kid->ID] = get_object_vars($kids[$kid->ID]);
return $weeuns;
} elseif ( $output == ARRAY_N ) {
foreach ( $kids as $kid )
$babes[$kid->ID] = array_values(get_object_vars($kids[$kid->ID]));
return $babes;
} else {
return $kids;
}
}
function get_page_by_path($page_path, $output = OBJECT) {
global $wpdb;
$page_path = rawurlencode(urldecode($page_path));
$page_path = str_replace('%2F', '/', $page_path);
$page_path = str_replace('%20', ' ', $page_path);
$page_paths = '/' . trim($page_path, '/');
$leaf_path = sanitize_title(basename($page_paths));
$page_paths = explode('/', $page_paths);
foreach($page_paths as $pathdir)
$full_path .= ($pathdir!=''?'/':'') . sanitize_title($pathdir);
$pages = $wpdb->get_results("SELECT ID, post_name, post_parent FROM $wpdb->posts WHERE post_name = '$leaf_path' AND post_type='page'");
if ( empty($pages) )
return NULL;
foreach ($pages as $page) {
$path = '/' . $leaf_path;
$curpage = $page;
while ($curpage->post_parent != 0) {
$curpage = $wpdb->get_row("SELECT ID, post_name, post_parent FROM $wpdb->posts WHERE ID = '$curpage->post_parent' and post_type='page'");
$path = '/' . $curpage->post_name . $path;
}
if ( $path == $full_path )
return get_page($page->ID, $output);
}
return NULL;
}
// Retrieves page data given a page ID or page object.
// Handles page caching.
function &get_page(&$page, $output = OBJECT) {
global $wpdb;
if ( empty($page) ) {
if ( isset($GLOBALS['page']) ) {
$_page = & $GLOBALS['page'];
wp_cache_add($_page->ID, $_page, 'pages');
} else {
$_page = null;
}
} elseif ( is_object($page) ) {
if ( 'post' == $page->post_type )
return get_post($page, $output);
wp_cache_add($page->ID, $page, 'pages');
$_page = $page;
} else {
if ( isset($GLOBALS['page']) && ($page == $GLOBALS['page']->ID) ) {
$_page = & $GLOBALS['page'];
wp_cache_add($_page->ID, $_page, 'pages');
} elseif ( $_page = $GLOBALS['post_cache'][$page] ) {
return get_post($page, $output);
} elseif ( $_page = wp_cache_get($page, 'pages') ) {
// Got it.
} else {
$query = "SELECT * FROM $wpdb->posts WHERE ID= '$page' LIMIT 1";
$_page = & $wpdb->get_row($query);
if ( 'post' == $_page->post_type )
return get_post($_page, $output);
wp_cache_add($_page->ID, $_page, 'pages');
}
}
if ( $output == OBJECT ) {
return $_page;
} elseif ( $output == ARRAY_A ) {
return get_object_vars($_page);
} elseif ( $output == ARRAY_N ) {
return array_values(get_object_vars($_page));
} else {
return $_page;
}
}
function get_all_page_ids() {
global $wpdb;
if ( ! $page_ids = wp_cache_get('all_page_ids', 'pages') ) {
$page_ids = $wpdb->get_col("SELECT ID FROM $wpdb->posts WHERE post_type = 'page'");
wp_cache_add('all_page_ids', $page_ids, 'pages');
}
return $page_ids;
}
function gzip_compression() {
if ( !get_settings('gzipcompression') ) return false;
if ( extension_loaded('zlib') ) {
ob_start('ob_gzhandler');
}
}
// functions to count the page generation time (from phpBB2)
// ( or just any time between timer_start() and timer_stop() )
function timer_stop($display = 0, $precision = 3) { //if called like timer_stop(1), will echo $timetotal
global $timestart, $timeend;
$mtime = microtime();
$mtime = explode(' ',$mtime);
$mtime = $mtime[1] + $mtime[0];
$timeend = $mtime;
$timetotal = $timeend-$timestart;
if ( $display )
echo number_format($timetotal,$precision);
return $timetotal;
}
function weblog_ping($server = '', $path = '') {
global $wp_version;
include_once (ABSPATH . WPINC . '/class-IXR.php');
// using a timeout of 3 seconds should be enough to cover slow servers
$client = new IXR_Client($server, ((!strlen(trim($path)) || ('/' == $path)) ? false : $path));
$client->timeout = 3;
$client->useragent .= ' -- WordPress/'.$wp_version;
// when set to true, this outputs debug messages by itself
$client->debug = false;
$home = trailingslashit( get_option('home') );
if ( !$client->query('weblogUpdates.extendedPing', get_settings('blogname'), $home, get_bloginfo('rss2_url') ) ) // then try a normal ping
$client->query('weblogUpdates.ping', get_settings('blogname'), $home);
}
function generic_ping($post_id = 0) {
$services = get_settings('ping_sites');
$services = preg_replace("|(\s)+|", '$1', $services); // Kill dupe lines
$services = trim($services);
if ( '' != $services ) {
$services = explode("\n", $services);
foreach ($services as $service) {
weblog_ping($service);
}
}
return $post_id;
}
// Send a Trackback
function trackback($trackback_url, $title, $excerpt, $ID) {
global $wpdb, $wp_version;
if ( empty($trackback_url) )
return;
$title = urlencode($title);
$excerpt = urlencode($excerpt);
$blog_name = urlencode(get_settings('blogname'));
$tb_url = $trackback_url;
$url = urlencode(get_permalink($ID));
$query_string = "title=$title&url=$url&blog_name=$blog_name&excerpt=$excerpt";
$trackback_url = parse_url($trackback_url);
$http_request = 'POST ' . $trackback_url['path'] . ($trackback_url['query'] ? '?'.$trackback_url['query'] : '') . " HTTP/1.0\r\n";
$http_request .= 'Host: '.$trackback_url['host']."\r\n";
$http_request .= 'Content-Type: application/x-www-form-urlencoded; charset='.get_settings('blog_charset')."\r\n";
$http_request .= 'Content-Length: '.strlen($query_string)."\r\n";
$http_request .= "User-Agent: WordPress/" . $wp_version;
$http_request .= "\r\n\r\n";
$http_request .= $query_string;
if ( '' == $trackback_url['port'] )
$trackback_url['port'] = 80;
$fs = @fsockopen($trackback_url['host'], $trackback_url['port'], $errno, $errstr, 4);
@fputs($fs, $http_request);
/*
$debug_file = 'trackback.log';
$fp = fopen($debug_file, 'a');
fwrite($fp, "\n*****\nRequest:\n\n$http_request\n\nResponse:\n\n");
while(!@feof($fs)) {
fwrite($fp, @fgets($fs, 4096));
}
fwrite($fp, "\n\n");
fclose($fp);
*/
@fclose($fs);
$tb_url = addslashes( $tb_url );
$wpdb->query("UPDATE $wpdb->posts SET pinged = CONCAT(pinged, '\n', '$tb_url') WHERE ID = '$ID'");
return $wpdb->query("UPDATE $wpdb->posts SET to_ping = TRIM(REPLACE(to_ping, '$tb_url', '')) WHERE ID = '$ID'");
}
function make_url_footnote($content) {
preg_match_all('/<a(.+?)href=\"(.+?)\"(.*?)>(.+?)<\/a>/', $content, $matches);
$j = 0;
for ($i=0; $i<count($matches[0]); $i++) {
$links_summary = (!$j) ? "\n" : $links_summary;
$j++;
$link_match = $matches[0][$i];
$link_number = '['.($i+1).']';
$link_url = $matches[2][$i];
$link_text = $matches[4][$i];
$content = str_replace($link_match, $link_text.' '.$link_number, $content);
$link_url = ((strtolower(substr($link_url,0,7)) != 'http://') && (strtolower(substr($link_url,0,8)) != 'https://')) ? get_settings('home') . $link_url : $link_url;
$links_summary .= "\n".$link_number.' '.$link_url;
}
$content = strip_tags($content);
$content .= $links_summary;
return $content;
}
function xmlrpc_getposttitle($content) {
global $post_default_title;
if ( preg_match('/<title>(.+?)<\/title>/is', $content, $matchtitle) ) {
$post_title = $matchtitle[0];
$post_title = preg_replace('/<title>/si', '', $post_title);
$post_title = preg_replace('/<\/title>/si', '', $post_title);
} else {
$post_title = $post_default_title;
}
return $post_title;
}
function xmlrpc_getpostcategory($content) {
global $post_default_category;
if ( preg_match('/<category>(.+?)<\/category>/is', $content, $matchcat) ) {
$post_category = trim($matchcat[1], ',');
$post_category = explode(',', $post_category);
} else {
$post_category = $post_default_category;
}
return $post_category;
}
function xmlrpc_removepostdata($content) {
$content = preg_replace('/<title>(.+?)<\/title>/si', '', $content);
$content = preg_replace('/<category>(.+?)<\/category>/si', '', $content);
$content = trim($content);
return $content;
}
function debug_fopen($filename, $mode) {
global $debug;
if ( $debug == 1 ) {
$fp = fopen($filename, $mode);
return $fp;
} else {
return false;
}
}
function debug_fwrite($fp, $string) {
global $debug;
if ( $debug == 1 ) {
fwrite($fp, $string);
}
}
function debug_fclose($fp) {
global $debug;
if ( $debug == 1 ) {
fclose($fp);
}
}
function do_enclose( $content, $post_ID ) {
global $wp_version, $wpdb;
include_once (ABSPATH . WPINC . '/class-IXR.php');
$log = debug_fopen(ABSPATH . '/enclosures.log', 'a');
$post_links = array();
debug_fwrite($log, 'BEGIN '.date('YmdHis', time())."\n");
$pung = get_enclosed( $post_ID );
$ltrs = '\w';
$gunk = '/#~:.?+=&%@!\-';
$punc = '.:?\-';
$any = $ltrs . $gunk . $punc;
preg_match_all("{\b http : [$any] +? (?= [$punc] * [^$any] | $)}x", $content, $post_links_temp);
debug_fwrite($log, 'Post contents:');
debug_fwrite($log, $content."\n");
foreach($post_links_temp[0] as $link_test) :
if ( !in_array($link_test, $pung) ) : // If we haven't pung it already
$test = parse_url($link_test);
if ( isset($test['query']) )
$post_links[] = $link_test;
elseif (($test['path'] != '/') && ($test['path'] != ''))
$post_links[] = $link_test;
endif;
endforeach;
foreach ($post_links as $url) :
if ( $url != '' && !$wpdb->get_var("SELECT post_id FROM $wpdb->postmeta WHERE post_id = '$post_ID' AND meta_key = 'enclosure' AND meta_value LIKE ('$url%')") ) {
if ( $headers = wp_get_http_headers( $url) ) {
$len = (int) $headers['content-length'];
$type = $wpdb->escape( $headers['content-type'] );
$allowed_types = array( 'video', 'audio' );
if ( in_array( substr( $type, 0, strpos( $type, "/" ) ), $allowed_types ) ) {
$meta_value = "$url\n$len\n$type\n";
$wpdb->query( "INSERT INTO `$wpdb->postmeta` ( `post_id` , `meta_key` , `meta_value` )
VALUES ( '$post_ID', 'enclosure' , '$meta_value')" );
}
}
}
endforeach;
}
function wp_get_http_headers( $url, $red = 1 ) {
global $wp_version;
@set_time_limit( 60 );
if ( $red > 5 )
return false;
$parts = parse_url( $url );
$file = $parts['path'] . ($parts['query'] ? '?'.$parts['query'] : '');
$host = $parts['host'];
if ( !isset( $parts['port'] ) )
$parts['port'] = 80;
$head = "HEAD $file HTTP/1.1\r\nHOST: $host\r\nUser-Agent: WordPress/" . $wp_version . "\r\n\r\n";
$fp = @fsockopen($host, $parts['port'], $err_num, $err_msg, 3);
if ( !$fp )
return false;
$response = '';
fputs( $fp, $head );
while ( !feof( $fp ) && strpos( $response, "\r\n\r\n" ) == false )
$response .= fgets( $fp, 2048 );
fclose( $fp );
preg_match_all('/(.*?): (.*)\r/', $response, $matches);
$count = count($matches[1]);
for ( $i = 0; $i < $count; $i++) {
$key = strtolower($matches[1][$i]);
$headers["$key"] = $matches[2][$i];
}
preg_match('/.*([0-9]{3}).*/', $response, $return);
$headers['response'] = $return[1]; // HTTP response code eg 204, 200, 404
$code = $headers['response'];
if ( ('302' == $code || '301' == $code) && isset($headers['location']) )
return wp_get_http_headers( $headers['location'], ++$red );
return $headers;
}
// Setup global post data.
function setup_postdata($post) {
global $id, $postdata, $authordata, $day, $page, $pages, $multipage, $more, $numpages, $wp_query;
global $pagenow;
$id = $post->ID;
$authordata = get_userdata($post->post_author);
$day = mysql2date('d.m.y', $post->post_date);
$currentmonth = mysql2date('m', $post->post_date);
$numpages = 1;
$page = get_query_var('page');
if ( !$page )
$page = 1;
if ( is_single() || is_page() )
$more = 1;
$content = $post->post_content;
if ( preg_match('/<!--nextpage-->/', $content) ) {
if ( $page > 1 )
$more = 1;
$multipage = 1;
$content = str_replace("\n<!--nextpage-->\n", '<!--nextpage-->', $content);
$content = str_replace("\n<!--nextpage-->", '<!--nextpage-->', $content);
$content = str_replace("<!--nextpage-->\n", '<!--nextpage-->', $content);
$pages = explode('<!--nextpage-->', $content);
$numpages = count($pages);
} else {
$pages[0] = $post->post_content;
$multipage = 0;
}
return true;
}
// Setup global user vars. Used by set_current_user() for back compat.
function setup_userdata($user_id = '') {
global $user_login, $userdata, $user_level, $user_ID, $user_email, $user_url, $user_pass_md5, $user_identity;
if ( '' == $user_id )
$user = wp_get_current_user();
else
$user = new WP_User($user_id);
if ( 0 == $user->ID )
return;
$userdata = $user->data;
$user_login = $user->user_login;
$user_level = $user->user_level;
$user_ID = $user->ID;
$user_email = $user->user_email;
$user_url = $user->user_url;
$user_pass_md5 = md5($user->user_pass);
$user_identity = $user->display_name;
}
function is_new_day() {
global $day, $previousday;
if ( $day != $previousday ) {
return(1);
} else {
return(0);
}
}
// Filters: these are the core of WP's plugin architecture
function merge_filters($tag) {
global $wp_filter;
if ( isset($wp_filter['all']) ) {
foreach ($wp_filter['all'] as $priority => $functions) {
if ( isset($wp_filter[$tag][$priority]) )
$wp_filter[$tag][$priority] = array_merge($wp_filter['all'][$priority], $wp_filter[$tag][$priority]);
else
$wp_filter[$tag][$priority] = array_merge($wp_filter['all'][$priority], array());
$wp_filter[$tag][$priority] = array_unique($wp_filter[$tag][$priority]);
}
}
if ( isset($wp_filter[$tag]) )
ksort( $wp_filter[$tag] );
}
function apply_filters($tag, $string) {
global $wp_filter;
$args = array_slice(func_get_args(), 2);
merge_filters($tag);
if ( !isset($wp_filter[$tag]) ) {
return $string;
}
foreach ($wp_filter[$tag] as $priority => $functions) {
if ( !is_null($functions) ) {
foreach($functions as $function) {
$all_args = array_merge(array($string), $args);
$function_name = $function['function'];
$accepted_args = $function['accepted_args'];
if ( $accepted_args == 1 )
$the_args = array($string);
elseif ( $accepted_args > 1 )
$the_args = array_slice($all_args, 0, $accepted_args);
elseif ( $accepted_args == 0 )
$the_args = NULL;
else
$the_args = $all_args;
$string = call_user_func_array($function_name, $the_args);
}
}
}
return $string;
}
function add_filter($tag, $function_to_add, $priority = 10, $accepted_args = 1) {
global $wp_filter;
// check that we don't already have the same filter at the same priority
if ( isset($wp_filter[$tag]["$priority"]) ) {
foreach($wp_filter[$tag]["$priority"] as $filter) {
// uncomment if we want to match function AND accepted_args
// if ( $filter == array($function, $accepted_args) ) {
if ( $filter['function'] == $function_to_add ) {
return true;
}
}
}
// So the format is wp_filter['tag']['array of priorities']['array of ['array (functions, accepted_args)]']
$wp_filter[$tag]["$priority"][] = array('function'=>$function_to_add, 'accepted_args'=>$accepted_args);
return true;
}
function remove_filter($tag, $function_to_remove, $priority = 10, $accepted_args = 1) {
global $wp_filter;
// rebuild the list of filters
if ( isset($wp_filter[$tag]["$priority"]) ) {
$new_function_list = array();
foreach($wp_filter[$tag]["$priority"] as $filter) {
if ( $filter['function'] != $function_to_remove ) {
$new_function_list[] = $filter;
}
}
$wp_filter[$tag]["$priority"] = $new_function_list;
}
return true;
}
// The *_action functions are just aliases for the *_filter functions, they take special strings instead of generic content
function do_action($tag, $arg = '') {
global $wp_filter;
$extra_args = array_slice(func_get_args(), 2);
if ( is_array($arg) )
$args = array_merge($arg, $extra_args);
else
$args = array_merge(array($arg), $extra_args);
merge_filters($tag);
if ( !isset($wp_filter[$tag]) ) {
return;
}
foreach ($wp_filter[$tag] as $priority => $functions) {
if ( !is_null($functions) ) {
foreach($functions as $function) {
$function_name = $function['function'];
$accepted_args = $function['accepted_args'];
if ( $accepted_args == 1 ) {
if ( is_array($arg) )
$the_args = $arg;
else
$the_args = array($arg);
} elseif ( $accepted_args > 1 ) {
$the_args = array_slice($args, 0, $accepted_args);
} elseif ( $accepted_args == 0 ) {
$the_args = NULL;
} else {
$the_args = $args;
}
$string = call_user_func_array($function_name, $the_args);
}
}
}
}
function add_action($tag, $function_to_add, $priority = 10, $accepted_args = 1) {
add_filter($tag, $function_to_add, $priority, $accepted_args);
}
function remove_action($tag, $function_to_remove, $priority = 10, $accepted_args = 1) {
remove_filter($tag, $function_to_remove, $priority, $accepted_args);
}
function get_page_uri($page_id) {
$page = get_page($page_id);
$uri = urldecode($page->post_name);
// A page cannot be it's own parent.
if ( $page->post_parent == $page->ID )
return $uri;
while ($page->post_parent != 0) {
$page = get_page($page->post_parent);
$uri = urldecode($page->post_name) . "/" . $uri;
}
return $uri;
}
function get_posts($args) {
global $wpdb;
if ( is_array($args) )
$r = &$args;
else
parse_str($args, $r);
$defaults = array('numberposts' => 5, 'offset' => 0, 'category' => '',
'orderby' => 'post_date', 'order' => 'DESC', 'include' => '', 'exclude' => '', 'meta_key' => '', 'meta_value' =>'');
$r = array_merge($defaults, $r);
extract($r);
$inclusions = '';
if ( !empty($include) ) {
$offset = 0; //ignore offset, category, exclude, meta_key, and meta_value params if using include
$category = '';
$exclude = '';
$meta_key = '';
$meta_value = '';
$incposts = preg_split('/[\s,]+/',$include);
$numberposts = count($incposts); // only the number of posts included
if ( count($incposts) ) {
foreach ( $incposts as $incpost ) {
if (empty($inclusions))
$inclusions = ' AND ( ID = ' . intval($incpost) . ' ';
else
$inclusions .= ' OR ID = ' . intval($incpost) . ' ';
}
}
}
if (!empty($inclusions))
$inclusions .= ')';
$exclusions = '';
if ( !empty($exclude) ) {
$exposts = preg_split('/[\s,]+/',$exclude);
if ( count($exposts) ) {
foreach ( $exposts as $expost ) {
if (empty($exclusions))
$exclusions = ' AND ( ID <> ' . intval($expost) . ' ';
else
$exclusions .= ' AND ID <> ' . intval($expost) . ' ';
}
}
}
if (!empty($exclusions))
$exclusions .= ')';
$query ="SELECT DISTINCT * FROM $wpdb->posts " ;
$query .= ( empty( $category ) ? "" : ", $wpdb->post2cat " ) ;
$query .= ( empty( $meta_key ) ? "" : ", $wpdb->postmeta " ) ;
$query .= " WHERE (post_type = 'post' AND post_status = 'publish') $exclusions $inclusions " ;
$query .= ( empty( $category ) ? "" : "AND ($wpdb->posts.ID = $wpdb->post2cat.post_id AND $wpdb->post2cat.category_id = " . $category. ") " ) ;
$query .= ( empty( $meta_key ) | empty($meta_value) ? "" : " AND ($wpdb->posts.ID = $wpdb->postmeta.post_id AND $wpdb->postmeta.meta_key = '$meta_key' AND $wpdb->postmeta.meta_value = '$meta_value' )" ) ;
$query .= " GROUP BY $wpdb->posts.ID ORDER BY " . $orderby . " " . $order . " LIMIT " . $offset . ',' . $numberposts ;
$posts = $wpdb->get_results($query);
update_post_caches($posts);
return $posts;
}
function update_post_cache(&$posts) {
global $post_cache;
if ( !$posts )
return;
for ($i = 0; $i < count($posts); $i++) {
$post_cache[$posts[$i]->ID] = &$posts[$i];
}
}
function clean_post_cache($id) {
global $post_cache;
if ( isset( $post_cache[$id] ) )
unset( $post_cache[$id] );
}
function update_page_cache(&$pages) {
global $page_cache;
if ( !$pages )
return;
for ($i = 0; $i < count($pages); $i++) {
$page_cache[$pages[$i]->ID] = &$pages[$i];
wp_cache_add($pages[$i]->ID, $pages[$i], 'pages');
}
}
function clean_page_cache($id) {
global $page_cache;
if ( isset( $page_cache[$id] ) )
unset( $page_cache[$id] );
}
function update_post_category_cache($post_ids) {
global $wpdb, $category_cache;
if ( empty($post_ids) )
return;
if ( is_array($post_ids) )
$post_ids = implode(',', $post_ids);
$dogs = $wpdb->get_results("SELECT post_id, category_id FROM $wpdb->post2cat WHERE post_id IN ($post_ids)");
if ( empty($dogs) )
return;
foreach ($dogs as $catt)
$category_cache[$catt->post_id][$catt->category_id] = &get_category($catt->category_id);
}
function update_post_caches(&$posts) {
global $post_cache, $category_cache, $post_meta_cache;
global $wpdb;
// No point in doing all this work if we didn't match any posts.
if ( !$posts )
return;
// Get the categories for all the posts
for ($i = 0; $i < count($posts); $i++) {
$post_id_array[] = $posts[$i]->ID;
$post_cache[$posts[$i]->ID] = &$posts[$i];
}
$post_id_list = implode(',', $post_id_array);
update_post_category_cache($post_id_list);
// Get post-meta info
if ( $meta_list = $wpdb->get_results("SELECT post_id, meta_key, meta_value FROM $wpdb->postmeta WHERE post_id IN($post_id_list) ORDER BY post_id, meta_key", ARRAY_A) ) {
// Change from flat structure to hierarchical:
$post_meta_cache = array();
foreach ($meta_list as $metarow) {
$mpid = $metarow['post_id'];
$mkey = $metarow['meta_key'];
$mval = $metarow['meta_value'];
// Force subkeys to be array type:
if ( !isset($post_meta_cache[$mpid]) || !is_array($post_meta_cache[$mpid]) )
$post_meta_cache[$mpid] = array();
if ( !isset($post_meta_cache[$mpid]["$mkey"]) || !is_array($post_meta_cache[$mpid]["$mkey"]) )
$post_meta_cache[$mpid]["$mkey"] = array();
// Add a value to the current pid/key:
$post_meta_cache[$mpid][$mkey][] = $mval;
}
}
}
function update_category_cache() {
return true;
}
function wp_head() {
do_action('wp_head');
}
function wp_footer() {
do_action('wp_footer');
}
/*
add_query_arg: Returns a modified querystring by adding
a single key & value or an associative array.
Setting a key value to emptystring removes the key.
Omitting oldquery_or_uri uses the $_SERVER value.
Parameters:
add_query_arg(newkey, newvalue, oldquery_or_uri) or
add_query_arg(associative_array, oldquery_or_uri)
*/
function add_query_arg() {
$ret = '';
if ( is_array(func_get_arg(0)) ) {
if ( @func_num_args() < 2 )
$uri = $_SERVER['REQUEST_URI'];
else
$uri = @func_get_arg(1);
} else {
if ( @func_num_args() < 3 )
$uri = $_SERVER['REQUEST_URI'];
else
$uri = @func_get_arg(2);
}
if ( strstr($uri, '?') ) {
$parts = explode('?', $uri, 2);
if ( 1 == count($parts) ) {
$base = '?';
$query = $parts[0];
} else {
$base = $parts[0] . '?';
$query = $parts[1];
}
}
else if ( strstr($uri, '/') ) {
$base = $uri . '?';
$query = '';
} else {
$base = '';
$query = $uri;
}
parse_str($query, $qs);
if ( is_array(func_get_arg(0)) ) {
$kayvees = func_get_arg(0);
$qs = array_merge($qs, $kayvees);
} else {
$qs[func_get_arg(0)] = func_get_arg(1);
}
foreach($qs as $k => $v) {
if ( $v != '' ) {
if ( $ret != '' )
$ret .= '&';
$ret .= "$k=$v";
}
}
$ret = $base . $ret;
return trim($ret, '?');
}
function remove_query_arg($key, $query) {
return add_query_arg($key, '', $query);
}
function add_magic_quotes($array) {
global $wpdb;
foreach ($array as $k => $v) {
if ( is_array($v) ) {
$array[$k] = add_magic_quotes($v);
} else {
$array[$k] = $wpdb->escape($v);
}
}
return $array;
}
function wp_remote_fopen( $uri ) {
if ( ini_get('allow_url_fopen') ) {
$fp = fopen( $uri, 'r' );
if ( !$fp )
return false;
$linea = '';
while( $remote_read = fread($fp, 4096) )
$linea .= $remote_read;
fclose($fp);
return $linea;
} else if ( function_exists('curl_init') ) {
$handle = curl_init();
curl_setopt ($handle, CURLOPT_URL, $uri);
curl_setopt ($handle, CURLOPT_CONNECTTIMEOUT, 1);
curl_setopt ($handle, CURLOPT_RETURNTRANSFER, 1);
$buffer = curl_exec($handle);
curl_close($handle);
return $buffer;
} else {
return false;
}
}
function wp($query_vars = '') {
global $wp;
$wp->main($query_vars);
}
function status_header( $header ) {
if ( 200 == $header )
$text = 'OK';
elseif ( 301 == $header )
$text = 'Moved Permanently';
elseif ( 302 == $header )
$text = 'Moved Temporarily';
elseif ( 304 == $header )
$text = 'Not Modified';
elseif ( 404 == $header )
$text = 'Not Found';
elseif ( 410 == $header )
$text = 'Gone';
@header("HTTP/1.1 $header $text");
@header("Status: $header $text");
}
function nocache_headers() {
@ header('Expires: Wed, 11 Jan 1984 05:00:00 GMT');
@ header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
@ header('Cache-Control: no-cache, must-revalidate, max-age=0');
@ header('Pragma: no-cache');
}
function get_usermeta( $user_id, $meta_key = '') {
global $wpdb;
$user_id = (int) $user_id;
if ( !empty($meta_key) ) {
$meta_key = preg_replace('|a-z0-9_|i', '', $meta_key);
$metas = $wpdb->get_results("SELECT meta_key, meta_value FROM $wpdb->usermeta WHERE user_id = '$user_id' AND meta_key = '$meta_key'");
} else {
$metas = $wpdb->get_results("SELECT meta_key, meta_value FROM $wpdb->usermeta WHERE user_id = '$user_id'");
}
if ( empty($metas) ) {
if ( empty($meta_key) )
return array();
else
return '';
}
foreach ($metas as $index => $meta) {
@ $value = unserialize($meta->meta_value);
if ( $value === FALSE )
$value = $meta->meta_value;
$values[] = $value;
}
if ( count($values) == 1 )
return $values[0];
else
return $values;
}
function update_usermeta( $user_id, $meta_key, $meta_value ) {
global $wpdb;
if ( !is_numeric( $user_id ) )
return false;
$meta_key = preg_replace('|[^a-z0-9_]|i', '', $meta_key);
if ( is_array($meta_value) || is_object($meta_value) )
$meta_value = serialize($meta_value);
$meta_value = trim( $meta_value );
if (empty($meta_value)) {
return delete_usermeta($user_id, $meta_key);
}
$cur = $wpdb->get_row("SELECT * FROM $wpdb->usermeta WHERE user_id = '$user_id' AND meta_key = '$meta_key'");
if ( !$cur ) {
$wpdb->query("INSERT INTO $wpdb->usermeta ( user_id, meta_key, meta_value )
VALUES
( '$user_id', '$meta_key', '$meta_value' )");
} else if ( $cur->meta_value != $meta_value ) {
$wpdb->query("UPDATE $wpdb->usermeta SET meta_value = '$meta_value' WHERE user_id = '$user_id' AND meta_key = '$meta_key'");
} else {
return false;
}
$user = get_userdata($user_id);
wp_cache_delete($user_id, 'users');
wp_cache_delete($user->user_login, 'userlogins');
return true;
}
function delete_usermeta( $user_id, $meta_key, $meta_value = '' ) {
global $wpdb;
if ( !is_numeric( $user_id ) )
return false;
$meta_key = preg_replace('|[^a-z0-9_]|i', '', $meta_key);
if ( is_array($meta_value) || is_object($meta_value) )
$meta_value = serialize($meta_value);
$meta_value = trim( $meta_value );
if ( ! empty($meta_value) )
$wpdb->query("DELETE FROM $wpdb->usermeta WHERE user_id = '$user_id' AND meta_key = '$meta_key' AND meta_value = '$meta_value'");
else
$wpdb->query("DELETE FROM $wpdb->usermeta WHERE user_id = '$user_id' AND meta_key = '$meta_key'");
$user = get_userdata($user_id);
wp_cache_delete($user_id, 'users');
wp_cache_delete($user->user_login, 'userlogins');
return true;
}
function register_activation_hook($file, $function) {
$file = plugin_basename($file);
add_action('activate_' . $file, $function);
}
function register_deactivation_hook($file, $function) {
$file = plugin_basename($file);
add_action('deactivate_' . $file, $function);
}
function plugin_basename($file) {
$file = preg_replace('|\\\\+|', '\\\\', $file);
$file = preg_replace('/^.*wp-content[\\\\\/]plugins[\\\\\/]/', '', $file);
return $file;
}
function get_num_queries() {
global $wpdb;
return $wpdb->num_queries;
}
function privacy_ping_filter( $sites ) {
if ( get_option('blog_public') )
return $sites;
else
return '';
}
function bool_from_yn($yn) {
if ($yn == 'Y') return 1;
return 0;
}
function do_feed() {
$feed = get_query_var('feed');
// Remove the pad, if present.
$feed = preg_replace('/^_+/', '', $feed);
if ($feed == '' || $feed == 'feed')
$feed = 'rss2';
$for_comments = false;
if ( is_single() || (get_query_var('withcomments') == 1) ) {
$feed = 'rss2';
$for_comments = true;
}
$hook = 'do_feed_' . $feed;
do_action($hook, $for_comments);
}
function do_feed_rdf() {
load_template(ABSPATH . 'wp-rdf.php');
}
function do_feed_rss() {
load_template(ABSPATH . 'wp-rss.php');
}
function do_feed_rss2($for_comments) {
if ( $for_comments ) {
load_template(ABSPATH . 'wp-commentsrss2.php');
} else {
load_template(ABSPATH . 'wp-rss2.php');
}
}
function do_feed_atom() {
load_template(ABSPATH . 'wp-atom.php');
}
function do_robots() {
if ( '1' != get_option('blog_public') ) {
echo "User-agent: *\n";
echo "Disallow: /\n";
} else {
echo "User-agent: *\n";
echo "Disallow:\n";
}
}
function is_blog_installed() {
global $wpdb;
$wpdb->hide_errors();
$installed = $wpdb->get_var("SELECT option_value FROM $wpdb->options WHERE option_name = 'siteurl'");
$wpdb->show_errors();
return $installed;
}
function wp_nonce_url($actionurl, $action = -1) {
return add_query_arg('_wpnonce', wp_create_nonce($action), $actionurl);
}
function wp_nonce_field($action = -1) {
echo '<input type="hidden" name="_wpnonce" value="' . wp_create_nonce($action) . '" />';
}
?>