Add `@static*` annotations where they are missing.

Initialize all static vars that are not, most to `null`.

See #32444.

Built from https://develop.svn.wordpress.org/trunk@32650


git-svn-id: http://core.svn.wordpress.org/trunk@32620 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/class-wp-filesystem-ftpext.php

@@ -379,7 +379,7 @@ class WP_Filesystem_FTPext extends WP_Filesystem_Base {
 	 * @return string
 	 */
 	public function parselisting($line) {
-		static $is_windows;
+		static $is_windows = null;
 		if ( is_null($is_windows) )
 			$is_windows = stripos( ftp_systype($this->link), 'win') !== false;
 

wp-admin/includes/class-wp-list-table.php

@@ -900,6 +900,8 @@ class WP_List_Table {
 	 * @since 3.1.0
 	 * @access public
 	 *
+	 * @staticvar int $cb_counter
+	 *
 	 * @param bool $with_id Whether to set the id attribute or not
 	 */
 	public function print_column_headers( $with_id = true ) {

wp-admin/includes/class-wp-ms-themes-list-table.php

@@ -162,7 +162,7 @@ class WP_MS_Themes_List_Table extends WP_List_Table {
 	 * @return bool
 	 */
 	public function _search_callback( $theme ) {
-		static $term;
+		static $term = null;
 		if ( is_null( $term ) )
 			$term = wp_unslash( $_REQUEST['s'] );
 

wp-admin/includes/class-wp-plugins-list-table.php

@@ -219,7 +219,7 @@ class WP_Plugins_List_Table extends WP_List_Table {
 	 * @return boolean
 	 */
 	public function _search_callback( $plugin ) {
-		static $term;
+		static $term = null;
 		if ( is_null( $term ) )
 			$term = wp_unslash( $_REQUEST['s'] );
 

wp-admin/includes/class-wp-upgrader.php

@@ -1658,6 +1658,8 @@ class Language_Pack_Upgrader extends WP_Upgrader {
 	 * Hooked to the {@see 'upgrader_process_complete'} action by default.
 	 *
 	 * @since 3.7.0
+	 *
+	 * @static
 	 */
 	public static function async_upgrade( $upgrader = false ) {
 		// Avoid recursion.
@@ -2136,6 +2138,8 @@ class Core_Upgrader extends WP_Upgrader {
 	 *
 	 * @since 3.7.0
 	 *
+	 * @static
+	 *
 	 * @param string $offered_ver The offered version, of the format x.y.z.
 	 * @return bool True if we should update to the offered version, otherwise false.
 	 */

wp-admin/includes/deprecated.php

@@ -732,6 +732,8 @@ function wp_dashboard_quick_press_output() {
  * @deprecated 3.3.0
  * @deprecated Use wp_editor()
  * @see wp_editor()
+ *
+ * @staticvar int $num
  */
 function wp_tiny_mce( $teeny = false, $settings = false ) {
 	_deprecated_function( __FUNCTION__, '3.3', 'wp_editor()' );

wp-admin/includes/media.php

@@ -535,6 +535,8 @@ document.body.className = document.body.className.replace('no-js', 'js');
  *
  * @global int $post_ID
  *
+ * @staticvar int $instance
+ *
  * @param string $editor_id
  */
 function media_buttons($editor_id = 'content') {

wp-admin/includes/screen.php

@@ -11,6 +11,8 @@
  *
  * @since 2.7.0
  *
+ * @staticvar array $column_headers
+ *
  * @param string|WP_Screen $screen The screen you want the headers for
  * @return array Containing the headers in the format id => UI String
  */
@@ -327,6 +329,11 @@ final class WP_Screen {
 
 	/**
 	 * Stores old string-based help.
+	 *
+	 * @static
+	 * @access private
+	 *
+	 * @var array
 	 */
 	private static $_old_compat_help = array();
 
@@ -343,8 +350,11 @@ final class WP_Screen {
 	 * The screen object registry.
 	 *
 	 * @since 3.3.0
-	 * @var array
+	 *
+	 * @static
 	 * @access private
+	 *
+	 * @var array
 	 */
 	private static $_registry = array();
 
@@ -372,6 +382,8 @@ final class WP_Screen {
 	 * @since 3.3.0
 	 * @access public
 	 *
+	 * @static
+	 *
 	 * @global string $hook_suffix
 	 *
 	 * @param string|WP_Screen $hook_name Optional. The hook name (also known as the hook suffix) used to determine the screen.
@@ -588,6 +600,8 @@ final class WP_Screen {
 	 *
 	 * @since 3.3.0
 	 *
+	 * @static
+	 *
 	 * @param WP_Screen $screen A screen object.
 	 * @param string $help Help text.
 	 */

wp-admin/includes/template.php

@@ -605,12 +605,14 @@ function list_meta( $meta ) {
  *
  * @since 2.5.0
  *
+ * @staticvar string $update_nonce
+ *
  * @param array $entry
  * @param int   $count
  * @return string
  */
 function _list_meta_row( $entry, &$count ) {
-	static $update_nonce = false;
+	static $update_nonce = '';
 
 	if ( is_protected_meta( $entry['meta_key'], 'post' ) )
 		return '';
@@ -1991,6 +1993,8 @@ final class WP_Internal_Pointers {
 	 * Individual pointers (e.g. wp390_widgets) can be disabled using the following:
 	 *     remove_action( 'admin_print_footer_scripts', array( 'WP_Internal_Pointers', 'pointer_wp390_widgets' ) );
 	 *
+	 * @static
+	 *
 	 * @param string $hook_suffix The current admin page.
 	 */
 	public static function enqueue_scripts( $hook_suffix ) {
@@ -2047,6 +2051,8 @@ final class WP_Internal_Pointers {
 	 *
 	 * @since 3.3.0
 	 *
+	 * @static
+	 *
 	 * @param string $pointer_id The pointer ID.
 	 * @param string $selector The HTML elements, on which the pointer should be attached.
 	 * @param array  $args Arguments to be passed to the pointer JS (see wp-pointer.js).
@@ -2094,6 +2100,9 @@ final class WP_Internal_Pointers {
 	public static function pointer_wp350_media() {}
 	public static function pointer_wp360_revisions() {}
 
+	/**
+	 * @static
+	 */
 	public static function pointer_wp360_locks() {
 		if ( ! is_multi_author() ) {
 			return;
@@ -2108,6 +2117,9 @@ final class WP_Internal_Pointers {
 		) );
 	}
 
+	/**
+	 * @static
+	 */
 	public static function pointer_wp390_widgets() {
 		if ( ! current_theme_supports( 'widgets' ) ) {
 			return;
@@ -2165,6 +2177,8 @@ final class WP_Internal_Pointers {
 	 *
 	 * @since 3.3.0
 	 *
+	 * @static
+	 *
 	 * @param int $user_id User ID.
 	 */
 	public static function dismiss_pointers_for_new_users( $user_id ) {

wp-admin/includes/theme.php

@@ -136,11 +136,13 @@ function theme_update_available( $theme ) {
  *
  * @since 3.8.0
  *
+ * @staticvar object $themes_update
+ *
  * @param WP_Theme $theme WP_Theme object.
  * @return false|string HTML for the update link, or false if invalid info was passed.
  */
 function get_theme_update_available( $theme ) {
-	static $themes_update;
+	static $themes_update = null;
 
 	if ( !current_user_can('update_themes' ) )
 		return false;

wp-admin/includes/widgets.php

@@ -104,6 +104,8 @@ function wp_list_widget_controls( $sidebar, $sidebar_name = '' ) {
  *
  * @global array $wp_registered_widgets
  *
+ * @staticvar int $i
+ *
  * @param array $params
  * @return array
  */

wp-includes/capabilities.php

@@ -489,6 +489,11 @@ class WP_User {
 	 */
 	var $filter = null;
 
+	/**
+	 * @static
+	 * @access private
+	 * @var array
+	 */
 	private static $back_compat_keys;
 
 	/**
@@ -562,6 +567,8 @@ class WP_User {
 	 *
 	 * @since 3.3.0
 	 *
+	 * @static
+	 *
 	 * @global wpdb $wpdb
 	 *
 	 * @param string $field The field to query against: 'id', 'slug', 'email' or 'login'

wp-includes/class-http.php

@@ -341,6 +341,8 @@ class WP_Http {
 	 * The order for requests is cURL, and then PHP Streams.
 	 *
 	 * @since 3.2.0
+	 *
+	 * @static
 	 * @access private
 	 *
 	 * @param string $url URL to Request
@@ -626,6 +628,9 @@ class WP_Http {
 	 * @link https://core.trac.wordpress.org/ticket/8927 Allow preventing external requests.
 	 * @link https://core.trac.wordpress.org/ticket/14636 Allow wildcard domains in WP_ACCESSIBLE_HOSTS
 	 *
+	 * @staticvar array|null $accessible_hosts
+	 * @staticvar array      $wildcard_regex
+	 *
 	 * @param string $uri URI of url.
 	 * @return bool True to block, false to allow.
 	 */
@@ -656,9 +661,9 @@ class WP_Http {
 		if ( !defined('WP_ACCESSIBLE_HOSTS') )
 			return true;
 
-		static $accessible_hosts;
+		static $accessible_hosts = null;
-		static $wildcard_regex = false;
+		static $wildcard_regex = array();
-		if ( null == $accessible_hosts ) {
+		if ( null === $accessible_hosts ) {
 			$accessible_hosts = preg_split('|,\s*|', WP_ACCESSIBLE_HOSTS);
 
 			if ( false !== strpos(WP_ACCESSIBLE_HOSTS, '*') ) {
@@ -687,6 +692,8 @@ class WP_Http {
 	 * when URL parsing failed.
 	 *
 	 * @since 4.1.0
+	 *
+	 * @static
 	 * @access protected
 	 *
 	 * @param string $url The URL to parse.
@@ -725,7 +732,9 @@ class WP_Http {
 	 *
 	 * @since 3.4.0
 	 *
+	 * @static
 	 * @access public
+	 *
 	 * @param string $maybe_relative_path The URL which might be relative
 	 * @param string $url                 The URL which $maybe_relative_path is relative to
 	 * @return string An Absolute URL, in a failure condition where the URL cannot be parsed, the relative URL will be returned.
@@ -796,6 +805,8 @@ class WP_Http {
 	 *
 	 * @since 3.7.0
 	 *
+	 * @static
+	 *
 	 * @param string $url The URL which was requested.
 	 * @param array $args The Arguments which were used to make the request.
 	 * @param array $response The Response of the HTTP request.
@@ -1798,6 +1809,9 @@ class WP_HTTP_Proxy {
 	 *
 	 * @since 2.8.0
 	 *
+	 * @staticvar array|null $bypass_hosts
+	 * @staticvar array      $wildcard_regex
+	 *
 	 * @param string $uri URI to check.
 	 * @return bool True, to send through the proxy and false if, the proxy should not be used.
 	 */
@@ -1837,9 +1851,9 @@ class WP_HTTP_Proxy {
 		if ( !defined('WP_PROXY_BYPASS_HOSTS') )
 			return true;
 
-		static $bypass_hosts;
+		static $bypass_hosts = null;
-		static $wildcard_regex = false;
+		static $wildcard_regex = array();
-		if ( null == $bypass_hosts ) {
+		if ( null === $bypass_hosts ) {
 			$bypass_hosts = preg_split('|,\s*|', WP_PROXY_BYPASS_HOSTS);
 
 			if ( false !== strpos(WP_PROXY_BYPASS_HOSTS, '*') ) {
@@ -2087,6 +2101,8 @@ class WP_Http_Encoding {
 	 *
 	 * @since 2.8.0
 	 *
+	 * @static
+	 *
 	 * @param string $raw String to compress.
 	 * @param int $level Optional, default is 9. Compression level, 9 is highest.
 	 * @param string $supports Optional, not used. When implemented it will choose the right compression based on what the server supports.
@@ -2106,6 +2122,8 @@ class WP_Http_Encoding {
 	 *
 	 * @since 2.8.0
 	 *
+	 * @static
+	 *
 	 * @param string $compressed String to decompress.
 	 * @param int $length The optional length of the compressed data.
 	 * @return string|bool False on failure.
@@ -2151,6 +2169,8 @@ class WP_Http_Encoding {
 	 * @link http://au2.php.net/manual/en/function.gzinflate.php#70875
 	 * @link http://au2.php.net/manual/en/function.gzinflate.php#77336
 	 *
+	 * @static
+	 *
 	 * @param string $gzData String to decompress.
 	 * @return string|bool False on failure.
 	 */
@@ -2190,6 +2210,8 @@ class WP_Http_Encoding {
 	 *
 	 * @since 2.8.0
 	 *
+	 * @static
+	 *
 	 * @param string $url
 	 * @param array  $args
 	 * @return string Types of encoding to accept.
@@ -2236,6 +2258,8 @@ class WP_Http_Encoding {
 	 *
 	 * @since 2.8.0
 	 *
+	 * @static
+	 *
 	 * @return string Content-Encoding string to send in the header.
 	 */
 	public static function content_encoding() {
@@ -2247,6 +2271,8 @@ class WP_Http_Encoding {
 	 *
 	 * @since 2.8.0
 	 *
+	 * @static
+	 *
 	 * @param array|string $headers All of the available headers.
 	 * @return bool
 	 */
@@ -2270,6 +2296,8 @@ class WP_Http_Encoding {
 	 *
 	 * @since 2.8.0
 	 *
+	 * @static
+	 *
 	 * @return bool
 	 */
 	public static function is_available() {

wp-includes/class-oembed.php

@@ -19,6 +19,10 @@
  */
 class WP_oEmbed {
 	public $providers = array();
+	/**
+	 * @static
+	 * @var array
+	 */
 	public static $early_providers = array();
 
 	private $compat_methods = array( '_fetch_with_format', '_parse_json', '_parse_xml', '_parse_body' );
@@ -611,15 +615,15 @@ class WP_oEmbed {
  * @since 2.9.0
  * @access private
  *
- * @see WP_oEmbed
+ * @staticvar WP_oEmbed $wp_oembed
  *
  * @return WP_oEmbed object.
  */
 function _wp_oembed_get_object() {
-	static $wp_oembed;
+	static $wp_oembed = null;
 
-	if ( is_null($wp_oembed) )
+	if ( is_null( $wp_oembed ) ) {
 		$wp_oembed = new WP_oEmbed();
-
+	}
 	return $wp_oembed;
 }

wp-includes/class-wp-customize-control.php

@@ -20,6 +20,8 @@ class WP_Customize_Control {
 	 * Used when sorting two instances whose priorities are equal.
 	 *
 	 * @since 4.1.0
+	 *
+	 * @static
 	 * @access protected
 	 * @var int
 	 */

wp-includes/class-wp-customize-panel.php

@@ -24,6 +24,8 @@ class WP_Customize_Panel {
 	 * Used when sorting two instances whose priorities are equal.
 	 *
 	 * @since 4.1.0
+	 *
+	 * @static
 	 * @access protected
 	 * @var int
 	 */

wp-includes/class-wp-customize-section.php

@@ -24,6 +24,8 @@ class WP_Customize_Section {
 	 * Used when sorting two instances whose priorities are equal.
 	 *
 	 * @since 4.1.0
+	 *
+	 * @static
 	 * @access protected
 	 * @var int
 	 */

wp-includes/class-wp-customize-widgets.php

@@ -108,6 +108,8 @@ final class WP_Customize_Widgets {
 	 * @since 4.2.0
 	 * @access protected
 	 *
+	 * @staticvar array $cache
+	 *
 	 * @param $setting_id Setting ID.
 	 * @return string|void Setting type.
 	 */
@@ -876,7 +878,6 @@ final class WP_Customize_Widgets {
 	 * Naturally order available widgets by name.
 	 *
 	 * @since 3.9.0
-	 * @static
 	 * @access protected
 	 *
 	 * @param array $widget_a The first widget to compare.

wp-includes/class-wp-image-editor-gd.php

@@ -34,10 +34,12 @@ class WP_Image_Editor_GD extends WP_Image_Editor {
 	 * Checks to see if current environment supports GD.
 	 *
 	 * @since 3.5.0
+	 *
+	 * @static
 	 * @access public
 	 *
 	 * @param array $args
-	 * @return boolean
+	 * @return bool
 	 */
 	public static function test( $args = array() ) {
 		if ( ! extension_loaded('gd') || ! function_exists('gd_info') )
@@ -58,10 +60,12 @@ class WP_Image_Editor_GD extends WP_Image_Editor {
 	 * Checks to see if editor supports the mime-type specified.
 	 *
 	 * @since 3.5.0
+	 *
+	 * @static
 	 * @access public
 	 *
 	 * @param string $mime_type
-	 * @return boolean
+	 * @return bool
 	 */
 	public static function supports_mime_type( $mime_type ) {
 		$image_types = imagetypes();

wp-includes/class-wp-image-editor-imagick.php

@@ -38,6 +38,8 @@ class WP_Image_Editor_Imagick extends WP_Image_Editor {
 	 * method can be called statically.
 	 *
 	 * @since 3.5.0
+	 *
+	 * @static
 	 * @access public
 	 *
 	 * @param array $args
@@ -86,6 +88,8 @@ class WP_Image_Editor_Imagick extends WP_Image_Editor {
 	 * Checks to see if editor supports the mime-type specified.
 	 *
 	 * @since 3.5.0
+	 *
+	 * @static
 	 * @access public
 	 *
 	 * @param string $mime_type

wp-includes/class-wp-image-editor.php

@@ -31,6 +31,8 @@ abstract class WP_Image_Editor {
 	 * Must be overridden in a sub-class.
 	 *
 	 * @since 3.5.0
+	 *
+	 * @static
 	 * @access public
 	 * @abstract
 	 *
@@ -46,6 +48,8 @@ abstract class WP_Image_Editor {
 	 * Must be overridden in a sub-class.
 	 *
 	 * @since 3.5.0
+	 *
+	 * @static
 	 * @access public
 	 * @abstract
 	 *
@@ -442,6 +446,8 @@ abstract class WP_Image_Editor {
 	 * as mapped from wp_get_mime_types()
 	 *
 	 * @since 3.5.0
+	 *
+	 * @static
 	 * @access protected
 	 *
 	 * @param string $extension
@@ -468,6 +474,8 @@ abstract class WP_Image_Editor {
 	 * as mapped from wp_get_mime_types()
 	 *
 	 * @since 3.5.0
+	 *
+	 * @static
 	 * @access protected
 	 *
 	 * @param string $mime_type

wp-includes/class-wp-theme.php

@@ -687,7 +687,7 @@ final class WP_Theme implements ArrayAccess {
      * @since 3.4.0
 	 * @access private
 	 *
-	 * @stativar string $comma
+	 * @staticvar string $comma
 	 *
 	 * @param string $header Theme header. Name, Description, Author, Version, ThemeURI, AuthorURI, Status, Tags.
 	 * @param string $value Value to mark up.

wp-includes/comment.php

@@ -2558,6 +2558,8 @@ function wp_defer_comment_counting($defer=null) {
  * @since 2.1.0
  * @see wp_update_comment_count_now() For what could cause a false return value
  *
+ * @staticvar array $_deferred
+ *
  * @param int $post_id Post ID
  * @param bool $do_deferred Whether to process previously deferred post comment counts
  * @return bool|void True on success, false on failure

wp-includes/compat.php

@@ -20,6 +20,8 @@ if ( !function_exists('_') ) {
  * @since 4.2.2
  * @access private
  *
+ * @staticvar string $utf8_pcre
+ *
  * @param bool $set - Used for testing only
  *             null   : default - get PCRE/u capability
  *             false  : Used for testing - return false for future calls to this function

wp-includes/default-widgets.php

@@ -644,10 +644,14 @@ class WP_Widget_Categories extends WP_Widget {
 	}
 
 	/**
+	 * @staticvar bool $first_dropdown
+	 *
 	 * @param array $args
 	 * @param array $instance
 	 */
 	public function widget( $args, $instance ) {
+		static $first_dropdown = true;
+
 		/** This filter is documented in wp-includes/default-widgets.php */
 		$title = apply_filters( 'widget_title', empty( $instance['title'] ) ? __( 'Categories' ) : $instance['title'], $instance, $this->id_base );
 
@@ -667,8 +671,6 @@ class WP_Widget_Categories extends WP_Widget {
 		);
 
 		if ( $d ) {
-			static $first_dropdown = true;
-
 			$dropdown_id = ( $first_dropdown ) ? 'cat' : "{$this->id_base}-dropdown-{$this->number}";
 			$first_dropdown = false;
 

wp-includes/formatting.php

@@ -38,8 +38,13 @@
  */
 function wptexturize( $text, $reset = false ) {
 	global $wp_cockneyreplace, $shortcode_tags;
-	static $static_characters, $static_replacements, $dynamic_characters, $dynamic_replacements,
+	static $static_characters = null,
-		$default_no_texturize_tags, $default_no_texturize_shortcodes, $run_texturize = true;
+		$static_replacements = null,
+		$dynamic_characters = null,
+		$dynamic_replacements = null,
+		$default_no_texturize_tags = null,
+		$default_no_texturize_shortcodes = null,
+		$run_texturize = true;
 
 	// If there's nothing to do, just stop.
 	if ( empty( $text ) || false === $run_texturize ) {
@@ -630,7 +635,7 @@ function seems_utf8( $str ) {
  * @since 1.2.2
  * @access private
  *
- * @staticvar string|false $_charset
+ * @staticvar string $_charset
  *
  * @param string $string         The text which is to be encoded.
  * @param int    $quote_style    Optional. Converts double quotes if set to ENT_COMPAT, both single and double if set to ENT_QUOTES or none if set to ENT_NOQUOTES. Also compatible with old values; converting single quotes if set to 'single', double if set to 'double' or both if otherwise set. Default is ENT_NOQUOTES.
@@ -656,7 +661,7 @@ function _wp_specialchars( $string, $quote_style = ENT_NOQUOTES, $charset = fals
 
 	// Store the site charset as a static to avoid multiple calls to wp_load_alloptions()
 	if ( ! $charset ) {
-		static $_charset;
+		static $_charset = null;
 		if ( ! isset( $_charset ) ) {
 			$alloptions = wp_load_alloptions();
 			$_charset = isset( $alloptions['blog_charset'] ) ? $alloptions['blog_charset'] : '';
@@ -790,7 +795,7 @@ function wp_check_invalid_utf8( $string, $strip = false ) {
 	}
 
 	// Store the site charset as a static to avoid multiple calls to get_option()
-	static $is_utf8;
+	static $is_utf8 = null;
 	if ( ! isset( $is_utf8 ) ) {
 		$is_utf8 = in_array( get_option( 'blog_charset' ), array( 'utf8', 'utf-8', 'UTF8', 'UTF-8' ) );
 	}
@@ -799,7 +804,7 @@ function wp_check_invalid_utf8( $string, $strip = false ) {
 	}
 
 	// Check for support for utf8 in the installed PCRE library once and store the result in a static
-	static $utf8_pcre;
+	static $utf8_pcre = null;
 	if ( ! isset( $utf8_pcre ) ) {
 		$utf8_pcre = @preg_match( '/^./u', 'a' );
 	}
@@ -3959,13 +3964,13 @@ function capital_P_dangit( $text ) {
 		return str_replace( 'Wordpress', 'WordPress', $text );
 	// Still here? Use the more judicious replacement
 	static $dblq = false;
-	if ( false === $dblq )
+	if ( false === $dblq ) {
 		$dblq = _x( '“', 'opening curly double quote' );
+	}
 	return str_replace(
 		array( ' Wordpress', '‘Wordpress', $dblq . 'Wordpress', '>Wordpress', '(Wordpress' ),
 		array( ' WordPress', '‘WordPress', $dblq . 'WordPress', '>WordPress', '(WordPress' ),
 	$text );
-
 }
 
 /**
@@ -4095,7 +4100,7 @@ function get_url_in_content( $content ) {
  * @return string The spaces regexp.
  */
 function wp_spaces_regexp() {
-	static $spaces;
+	static $spaces = '';
 
 	if ( empty( $spaces ) ) {
 		/**

wp-includes/functions.php

@@ -1621,7 +1621,7 @@ function wp_normalize_path( $path ) {
  * @return string Writable temporary directory.
  */
 function get_temp_dir() {
-	static $temp;
+	static $temp = '';
 	if ( defined('WP_TEMP_DIR') )
 		return trailingslashit(WP_TEMP_DIR);
 
@@ -4483,7 +4483,7 @@ function send_frame_options_header() {
  * @return array Array of allowed protocols.
  */
 function wp_allowed_protocols() {
-	static $protocols;
+	static $protocols = array();
 
 	if ( empty( $protocols ) ) {
 		$protocols = array( 'http', 'https', 'ftp', 'ftps', 'mailto', 'news', 'irc', 'gopher', 'nntp', 'feed', 'telnet', 'mms', 'rtsp', 'svn', 'tel', 'fax', 'xmpp', 'webcal' );

wp-includes/http.php

@@ -22,11 +22,11 @@
  * @return WP_Http HTTP Transport object.
  */
 function _wp_http_get_object() {
-	static $http;
+	static $http = null;
 
-	if ( is_null($http) )
+	if ( is_null( $http ) ) {
 		$http = new WP_Http();
-
+	}
 	return $http;
 }
 

wp-includes/ms-functions.php

@@ -2146,11 +2146,11 @@ Thanks!
  *
  * @staticvar bool $forced_content
  *
- * @param string|bool $force
+ * @param bool $force
  * @return bool True if forced, false if not forced.
  */
 function force_ssl_content( $force = '' ) {
-	static $forced_content;
+	static $forced_content = false;
 
 	if ( '' != $force ) {
 		$old_forced = $forced_content;

wp-includes/plugin.php

@@ -689,7 +689,7 @@ function wp_register_plugin_realpath( $file ) {
 	global $wp_plugin_paths;
 
 	// Normalize, but store as static to avoid recalculation of a constant value
-	static $wp_plugin_path, $wpmu_plugin_path;
+	static $wp_plugin_path = null, $wpmu_plugin_path = null;
 	if ( ! isset( $wp_plugin_path ) ) {
 		$wp_plugin_path   = wp_normalize_path( WP_PLUGIN_DIR   );
 		$wpmu_plugin_path = wp_normalize_path( WPMU_PLUGIN_DIR );

wp-includes/pomo/po.php

@@ -355,6 +355,7 @@ class PO extends Gettext_Translations {
 	/**
 	 * @staticvar string   $last_line
 	 * @staticvar boolean  $use_last_line
+	 * 
 	 * @param     resource $f
 	 * @param     string   $action
 	 * @return boolean

wp-includes/revision.php

@@ -16,16 +16,16 @@
  * @since 2.6.0
  * @access private
  *
- * @staticvar array|false $fields
+ * @staticvar array $fields
  *
  * @param array $post     Optional. A post array to be processed for insertion as a post revision.
  * @param bool  $autosave Optional. Is the revision an autosave?
  * @return array Post array ready to be inserted as a post revision or array of fields that can be versioned.
  */
 function _wp_post_revision_fields( $post = null, $autosave = false ) {
-	static $fields = false;
+	static $fields = null;
 
-	if ( !$fields ) {
+	if ( is_null( $fields ) ) {
 		// Allow these to be versioned
 		$fields = array(
 			'post_title' => __( 'Title' ),

wp-includes/rewrite.php

@@ -2170,7 +2170,7 @@ class WP_Rewrite {
 	 * @param bool $hard Whether to update .htaccess (hard flush) or just update rewrite_rules option (soft flush). Default is true (hard).
 	 */
 	public function flush_rules( $hard = true ) {
-		static $do_hard_later;
+		static $do_hard_later = null;
 
 		// Prevent this action from running before everyone has registered their rewrites
 		if ( ! did_action( 'wp_loaded' ) ) {

wp-includes/theme.php

@@ -410,10 +410,11 @@ function register_theme_directory( $directory ) {
  */
 function search_theme_directories( $force = false ) {
 	global $wp_theme_directories;
+	static $found_themes = null;
+
 	if ( empty( $wp_theme_directories ) )
 		return false;
 
-	static $found_themes;
 	if ( ! $force && isset( $found_themes ) )
 		return $found_themes;
 
@@ -1105,7 +1106,7 @@ function get_header_image() {
  * @return object
  */
 function _get_random_header_data() {
-	static $_wp_random_header;
+	static $_wp_random_header = null;
 
 	if ( empty( $_wp_random_header ) ) {
 		global $_wp_default_headers;

wp-includes/vars.php

@@ -118,13 +118,16 @@ $is_iis7 = $is_IIS && intval( substr( $_SERVER['SERVER_SOFTWARE'], strpos( $_SER
 /**
  * Test if the current browser runs on a mobile device (smart phone, tablet, etc.)
  *
+ * @staticvar bool $is_mobile
+ *
  * @return bool true|false
  */
 function wp_is_mobile() {
-	static $is_mobile;
+	static $is_mobile = null;
 
-	if ( isset($is_mobile) )
+	if ( isset( $is_mobile ) ) {
 		return $is_mobile;
+	}
 
 	if ( empty($_SERVER['HTTP_USER_AGENT']) ) {
 		$is_mobile = false;

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.3-alpha-32649';
+$wp_version = '4.3-alpha-32650';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.