apply_filters( 'load_textdomain_mofile', string $mofile, string $domain )

Filters MO file path for loading translations for a specific text domain.

Description Description

Parameters Parameters


(string) Path to the MO file.


(string) Text domain. Unique identifier for retrieving translated strings.

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Source Source

File: wp-includes/l10n.php

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Changelog Changelog

Version Description
2.9.0 Introduced.

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User Contributed Notes User Contributed Notes

  1. Skip to note 1 content
    Contributed by Manuel

    An example that allows to override the default translations of a plugin:

    add_filter( 'load_textdomain_mofile', 'my_custom_translation_file', 10, 2 );
     * Replace 'textdomain' with your plugin's textdomain. e.g. 'hello-dolly'. 
     * Define your filename, such as:
     * Define the location, for example: wp-content/languages/textdomain/
    function my_custom_translation_file( $mofile, $domain ) {
      if ( 'textdomain' === $domain ) {
        $mofile = WP_LANG_DIR . '/textdomain/yourtranslationfile-' . get_locale() . '.mo';
      return $mofile;

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