lithium\storage\cache\adapter\Apc::enabled PHP Method

    public static function enabled()
    {
        $loaded = extension_loaded('apc');
        $isCli = php_sapi_name() === 'cli';
        $enabled = !$isCli && ini_get('apc.enabled') || $isCli && ini_get('apc.enable_cli');
        return $loaded && $enabled;
    }

 * Lithium: the most rad php framework
 *
 * @copyright     Copyright 2010, Union of RAD (http://union-of-rad.org)
 * @license       http://opensource.org/licenses/bsd-license.php The BSD License
 */
/**
 * This file creates a default cache configuration using the most optimized adapter available, and
 * uses it to provide default caching for high-overhead operations.
 */
use lithium\storage\Cache;
use lithium\core\Libraries;
use lithium\action\Dispatcher;
use lithium\storage\cache\adapter\Apc;
/**
 * If APC is not available and the cache directory is not writeable, bail out.
 */
if (!($apcEnabled = Apc::enabled() && !is_writable(LITHIUM_APP_PATH . '/resources/tmp/cache'))) {
    return;
}
Cache::config(array('default' => array('adapter' => '\\lithium\\storage\\cache\\adapter\\' . ($apcEnabled ? 'Apc' : 'File'))));
Dispatcher::applyFilter('run', function ($self, $params, $chain) {
    if ($cache = Cache::read('default', 'core.libraries')) {
        $cache = (array) unserialize($cache) + Libraries::cache();
        Libraries::cache($cache);
    }
    $result = $chain->next($self, $params, $chain);
    if ($cache != Libraries::cache()) {
        Cache::write('default', 'core.libraries', serialize(Libraries::cache()), '+1 day');
    }
    return $result;
});