load_plugin_textdomain()

load_plugin_textdomain() — Loads a plugin’s translated strings. If the path is not given then it will be the root of the plugin directory. The .mo file should be named based on the text domain with a dash, and then the locale exactly.

Inputs: $domain (string): Unique identifier for retrieving translated strings $deprecated (string|false): Optional. Deprecated. Use the $plugin_rel_path parameter instead. Default false. $plugin_rel_path (string|false): Optional. Relative path to WP_PLUGIN_DIR where the .mo file resides. Default false.

Returns bool: True when textdomain is successfully loaded, false otherwise.