'opcache.engine', 'label' => 'Opcode Cache', 'control' => 'selectbox', 'value' => $opcode_engine, 'selectbox_values' => array( 'Not Available' => array( 'disabled' => ( $opcode_engine !== 'Not Available' ), 'label' => __( 'Not Available', 'w3-total-cache' ), ), 'OPcache' => array( 'disabled' => ( $opcode_engine !== 'OPcache' ), 'label' => __( 'Opcode: Zend Opcache', 'w3-total-cache' ), ), 'APC' => array( 'disabled' => ( $opcode_engine !== 'APC' ), 'label' => __( 'Opcode: Alternative PHP Cache (APC / APCu)', 'w3-total-cache' ), ), ), ) ); Util_Ui::config_item( array( 'key' => 'opcache.validate_timestamps', 'label' => 'Validate Timestamps', 'control' => 'checkbox', 'disabled' => true, 'value' => $validate_timestamps, 'checkbox_label' => __( 'Enable', 'w3-total-cache' ), 'description' => __( 'Once enabled, each file request will update the cache with the latest version.' . 'When this setting is off, the Opcode Cache will not check, instead PHP must be restarted in order for setting changes to be reflected.', 'w3-total-cache' ) ) ); ?> ' ); ?>