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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 |
|---|---|
| 1379 | /* |
| 1380 | The following filter loads external language files for TinyMCE plugins. |
| 1381 | It takes an associative array 'plugin_name' => 'path', where path is the |
| 1382 | include path to the file. The language file should follow the same format as |
| 1383 | /tinymce/langs/wp-langs.php and should define a variable $strings that |
| 1384 | holds all translated strings. |
| 1385 | When this filter is not used, the function will try to load {mce_locale}.js. |
| 1386 | If that is not found, en.js will be tried next. |
| 1387 | */ |
| 1388 | $mce_external_languages = apply_filters('mce_external_languages', array()); |
| 1389 | |
| 1390 | $loaded_langs = array(); |
| 1391 | $strings = ''; |
| 1392 | |
| 1393 | if ( ! empty($mce_external_languages) ) { |
| 1394 | foreach ( $mce_external_languages as $name => $path ) { |
| 1395 | if ( @is_file($path) && @is_readable($path) ) { |
| 1396 | include_once($path); |
| 1397 | $ext_plugins .= $strings . "\n"; |