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To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 1148 | // Replace ampersands ony when displaying. |
| 1149 | if ( 'display' == $context ) |
| 1150 | $url = preg_replace('/&([^#])(?![a-z]{2,8};)/', '&$1', $url); |
| 1151 | |
| 1152 | if ( !is_array($protocols) ) |
| 1153 | $protocols = array('http', 'https', 'ftp', 'ftps', 'mailto', 'news', 'irc', 'gopher', 'nntp', 'feed', 'telnet'); |
| 1154 | if ( wp_kses_bad_protocol( $url, $protocols ) != $url ) |
| 1155 | return ''; |
| 1156 | |
| 1157 | return apply_filters('clean_url', $url, $original_url, $context); |
| 1158 | } |
| 1159 | |
| 1160 | function sanitize_url( $url, $protocols = null ) { |
| 1161 | return clean_url( $url, $protocols, 'db'); |
| 1162 | } |
| 1163 | |
| 1164 | // Borrowed from the PHP Manual user notes. Convert entities, while |
| 1165 | // preserving already-encoded entities: |
| 1166 | function htmlentities2($myHTML) { |