/** * Check WordLift's configuration. * * @since 3.0.0 * * @return bool True if the configuration is set otherwise false. */ function wl_configuration_validate() { // Check that the WordLift key has been set or show a notice. if ('' !== wl_configuration_get_key()) { return; } Wordlift_Notice_Service::get_instance()->add_error(sprintf(__('application-key-not-set', 'wordlift'), 'http://join.wordlift.it')); }