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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 |
|---|---|
| 186 | /* |
| 187 | The following filter loads external language files for TinyMCE plugins. |
| 188 | It takes an associative array 'plugin_name' => 'path', where path is the |
| 189 | include path to the file. The language file should follow the same format as |
| 190 | /tinymce/langs/wp-langs.php and should define a variable $strings that |
| 191 | holds all translated strings. |
| 192 | When this filter is not used, the function will try to load {mce_locale}.js. |
| 193 | If that is not found, en.js will be tried next. |
| 194 | */ |
| 195 | $mce_external_languages = apply_filters('mce_external_languages', array()); |
| 196 | |
| 197 | $loaded_langs = array(); |
| 198 | $strings = ''; |
| 199 | |
| 200 | if ( ! empty($mce_external_languages) ) { |
| 201 | foreach ( $mce_external_languages as $name => $path ) { |
| 202 | if ( @is_file($path) && @is_readable($path) ) { |
| 203 | include_once($path); |
| 204 | $ext_plugins .= $strings . "\n"; |