array( 'fragmentcache', 'engine' ), 'label' => __( 'Fragment Cache Method:', 'w3-total-cache' ), 'empty_value' => true, 'pro' => true, ); if ( ! Util_Environment::is_w3tc_pro( $w3tc_config ) ) { $w3tc_fragmentcache_config['disabled'] = true; } Util_Ui::config_item_engine( $w3tc_fragmentcache_config ); ?>