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File: Driver.php
<?php /** * * This file is part of phpFastCache. * * @license MIT License (MIT) * * For full copyright and license information, please see the docs/CREDITS.txt file. * * @author Khoa Bui (khoaofgod) <khoaofgod@gmail.com> https://www.phpfastcache.com * @author Georges.L (Geolim4) <contact@geolim4.com> * */ declare(strict_types=1); namespace Phpfastcache\Drivers\Apc; use Phpfastcache\Core\Pool\{ DriverBaseTrait, ExtendedCacheItemPoolInterface }; use Phpfastcache\Entities\DriverStatistic; use Phpfastcache\Exceptions\{ PhpfastcacheInvalidArgumentException }; use Psr\Cache\CacheItemInterface; /** * Class Driver * @package phpFastCache\Drivers * @property Config $config Config object * @method Config getConfig() Return the config object */ class Driver implements ExtendedCacheItemPoolInterface { use DriverBaseTrait { DriverBaseTrait::__construct as private __parentConstruct; } /** * Driver constructor. * @param Config $config * @param string $instanceId */ public function __construct(Config $config, string $instanceId) { $this->__parentConstruct($config, $instanceId); } /** * @return bool */ public function driverCheck(): bool { return extension_loaded('apc') && ini_get('apc.enabled'); } /** * @return bool */ protected function driverConnect(): bool { return true; } /** * @param \Psr\Cache\CacheItemInterface $item * @return null|array */ protected function driverRead(CacheItemInterface $item) { $data = apc_fetch($item->getKey(), $success); if ($success === false) { return null; } return $data; } /** * @param \Psr\Cache\CacheItemInterface $item * @return bool * @throws PhpfastcacheInvalidArgumentException */ protected function driverWrite(CacheItemInterface $item): bool { /** * Check for Cross-Driver type confusion */ if ($item instanceof Item) { $ttl = $item->getExpirationDate()->getTimestamp() - \time(); return (bool)apc_store($item->getKey(), $this->driverPreWrap($item), ($ttl > 0 ? $ttl : 0)); } throw new PhpfastcacheInvalidArgumentException('Cross-Driver type confusion detected'); } /** * @param \Psr\Cache\CacheItemInterface $item * @return bool * @throws PhpfastcacheInvalidArgumentException */ protected function driverDelete(CacheItemInterface $item): bool { /** * Check for Cross-Driver type confusion */ if ($item instanceof Item) { return (bool)apc_delete($item->getKey()); } throw new PhpfastcacheInvalidArgumentException('Cross-Driver type confusion detected'); } /** * @return bool */ protected function driverClear(): bool { return @apc_clear_cache() || @apc_clear_cache('user'); } /******************** * * PSR-6 Extended Methods * *******************/ /** * @return DriverStatistic */ public function getStats(): DriverStatistic { $stats = (array)apc_cache_info('user'); $date = (new \DateTime())->setTimestamp($stats['start_time']); return (new DriverStatistic()) ->setData(\implode(', ', \array_keys($this->itemInstances))) ->setInfo(\sprintf("The APC cache is up since %s, and have %d item(s) in cache.\n For more information see RawData.", $date->format(\DATE_RFC2822), $stats['num_entries'])) ->setRawData($stats) ->setSize($stats['mem_size']); } }