server/lib/private/memcache/apcu.php

<?php
/**
 * @author Andreas Fischer <bantu@owncloud.com>
 * @author Bart Visscher <bartv@thisnet.nl>
 * @author Lukas Reschke <lukas@owncloud.com>
 * @author Morris Jobke <hey@morrisjobke.de>
 *
 * @copyright Copyright (c) 2015, ownCloud, Inc.
 * @license AGPL-3.0
 *
 * This code is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License, version 3,
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License, version 3,
 * along with this program.  If not, see <http://www.gnu.org/licenses/>
 *
 */

namespace OC\Memcache;

class APCu extends APC {
	static public function isAvailable() {
		if (!extension_loaded('apcu')) {
			return false;
		} elseif (!ini_get('apc.enabled')) {
			return false;
		} elseif (!ini_get('apc.enable_cli') && \OC::$CLI) {
			return false;
		} elseif (version_compare(phpversion('apc'), '4.0.6') === -1) {
			return false;
		} else {
			return true;
		}
	}
}