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<?php |
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/** |
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* Kotori.php |
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* |
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* A Tiny Model-View-Controller PHP Framework |
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* |
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* This content is released under the Apache 2 License |
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* |
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* Copyright (c) 2015-2017 Kotori Technology. All rights reserved. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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/** |
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* Memcached Caching Class |
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* |
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* @package Kotori |
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* @subpackage Cache |
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* @author Kokororin |
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* @link https://kotori.love |
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*/ |
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namespace Kotori\Core\Cache; |
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use Kotori\Core\Container; |
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use Kotori\Debug\Hook; |
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use Kotori\Exception\CacheException; |
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class Memcached |
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{ |
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/** |
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* Holds the memcached object |
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* |
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* @var object |
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*/ |
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protected $memcached; |
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/** |
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* Memcached configuration |
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* |
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* @var array |
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*/ |
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protected $memcacheConf = [ |
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'default' => [ |
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'host' => '127.0.0.1', |
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'port' => 11211, |
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'weight' => 1, |
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], |
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]; |
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/** |
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* Class constructor |
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* |
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* Setup Memcache(d) |
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* |
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* @param array $config |
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* @return void |
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* |
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* @throws \Kotori\Exception\CacheException |
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*/ |
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public function __construct($config = []) |
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{ |
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// Try to load memcached server info from the config file. |
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1 |
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$defaults = $this->memcacheConf['default']; |
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1 |
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if (empty($config)) { |
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1 |
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$config = Container::get('config')->get('cache'); |
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} |
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$memcacheConf = isset($config['memcached']) ? $config['memcached'] : null; |
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1 |
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if (is_array($memcacheConf)) { |
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$this->memcacheConf = []; |
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foreach ($memcacheConf as $name => $conf) { |
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$this->memcacheConf[$name] = $conf; |
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} |
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} |
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if (class_exists('Memcached', false)) { |
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$this->memcached = new \Memcached(); |
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} elseif (class_exists('Memcache', false)) { |
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$this->memcached = new \Memcache(); |
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} else { |
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throw new CacheException('Failed to create Memcache(d) object; extension not loaded?'); |
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} |
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1 |
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foreach ($this->memcacheConf as $cacheServer) { |
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if (!isset($cacheServer['host'])) { |
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$cacheServer['host'] = $defaults['host']; |
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} |
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if (!isset($cacheServer['port'])) { |
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$cacheServer['port'] = $defaults['port']; |
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} |
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1 |
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if (!isset($cacheServer['weight'])) { |
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$cacheServer['weight'] = $defaults['weight']; |
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} |
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if (get_class($this->memcached) === 'Memcache') { |
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// Third parameter is persistance and defaults to TRUE. |
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$this->memcached->addServer( |
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$cacheServer['host'], |
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$cacheServer['port'], |
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true, |
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$cacheServer['weight'] |
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); |
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} else { |
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$this->memcached->addServer( |
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$cacheServer['host'], |
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$cacheServer['port'], |
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1 |
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$cacheServer['weight'] |
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); |
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} |
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} |
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Hook::listen(__CLASS__); |
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} |
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/** |
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* Fetch from cache |
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* |
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* @param string $key |
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* @return mixed |
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*/ |
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public function get($key) |
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{ |
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$value = $this->memcached->get($key); |
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return is_array($value) ? $value[0] : $value; |
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} |
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/** |
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* Set |
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* |
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* @param string $key |
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* @param mixed $value |
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* @param int $ttl |
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* @param boolean $raw |
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* @return boolean |
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*/ |
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public function set($key, $value, $ttl = 60, $raw = false) |
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{ |
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if ($raw !== true) { |
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$value = [$value, time(), $ttl]; |
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} |
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if (get_class($this->memcached) === 'Memcached') { |
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return $this->memcached->set($key, $value, $ttl); |
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} elseif (get_class($this->memcached) === 'Memcache') { |
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return $this->memcached->set($key, $value, 0, $ttl); |
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} |
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return false; |
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} |
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/** |
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* Delete from Cache |
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* |
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* @param mixed $key |
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* @return boolean |
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*/ |
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public function delete($key) |
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{ |
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return $this->memcached->delete($key); |
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} |
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/** |
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* Clean the Cache |
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* |
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* @return boolean |
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*/ |
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1 |
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public function clear() |
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{ |
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1 |
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return $this->memcached->flush(); |
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} |
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/** |
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* Is supported |
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* |
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* Returns FALSE if memcached is not supported on the system. |
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* If it is, we setup the memcached object & return TRUE |
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* |
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* @return boolean |
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*/ |
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1 |
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public function isSupported() |
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{ |
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return (extension_loaded('memcached') or extension_loaded('memcache')); |
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} |
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} |
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kokororin /
Kotori.php
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Adding a
@returnannotation to a constructor is not recommended, since a constructor does not have a meaningful return value.Please refer to the PHP core documentation on constructors.