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I have a wp plugin with the required .pot and .mo localization files. Everything works fine, if I change the wordpress language, the plugin language changes too. But some users has requested if I could make an option to change only the plugin language without changing wordpress.

Is there any function I could use to load a specific localization file regardless of the one loaded in wp?

  • You are probably going to have to provide more detail? Are you only needing to change the admin interface for the plugin? Does the plugin generate front end content? – s_ha_dum Nov 1 '15 at 20:05
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Use plugin_locale filter:

apply_filters( 'plugin_locale', $locale, $domain );

Change locale like this:

$my_plugin_domain = 'my_plugin_domain_name';
$override_locale = 'es-ES';
add_filter('plugin_locale',
    function ($locale, $domain) use ($my_plugin_domain, $override_locale) {
        if($domain == $my_plugin_domain) {
            $locale =  $override_locale;
        }
        return $locale;
    }, 10, 2);

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