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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 |
|---|---|
| 214 | /* |
| 215 | The following filter loads external language files for TinyMCE plugins. |
| 216 | It takes an associative array 'plugin_name' => 'path', where path is the |
| 217 | include path to the file. The language file should follow the same format as |
| 218 | /tinymce/langs/wp-langs.php and should define a variable $strings that |
| 219 | holds all translated strings. |
| 220 | When this filter is not used, the function will try to load {mce_locale}.js. |
| 221 | If that is not found, en.js will be tried next. |
| 222 | */ |
| 223 | $mce_external_languages = apply_filters('mce_external_languages', array()); |
| 224 | |
| 225 | $loaded_langs = array(); |
| 226 | $strings = ''; |
| 227 | |
| 228 | if ( ! empty($mce_external_languages) ) { |
| 229 | foreach ( $mce_external_languages as $name => $path ) { |
| 230 | if ( @is_file($path) && @is_readable($path) ) { |
| 231 | include_once($path); |
| 232 | $ext_plugins .= $strings . "\n"; |