null, 'allegrato_webapi_login_allegro' => null, 'allegrato_webapi_password_allegro' => null, 'allegrato_webapi_site_allegro' => null, 'allegrato_webapi_country_allegro' => null, ); public function activate() { foreach( $this->options as $optionKey => $optionValue ) { if( isset( $optionValue ) ) { add_option( $optionKey, $optionValue ); } } } public function deactivate() { foreach( array_keys( $this->options ) as $optionKey ) { delete_option( $optionKey ); } } public function getOptions() { return array_keys( $this->options ); } }