【Memcached学习笔记（一）PHP操作Memcached】高性能的分布式内存对象缓存系统Memcached

Memcached菜鸟教程：​​http://www.runoob.com/Memcached/Memcached-tutorial.html​​

<?php

class Config
{
    const MEMCACHED_SERVERS = [
        ['127.0.0.1', '11211', 50]
    ];
}

/**
 * Class BaseMemcached
 */
class BaseMemcached
{
    /**
     * @var Memcached
     */
    private $cache;

    public function __construct($prefix = '')
    {
        $this->cache = new Memcached();
        $this->cache->addServers(Config::MEMCACHED_SERVERS);
        $this->cache->setOption(Memcached::OPT_PREFIX_KEY, $prefix);
    }

    /**
     * Store an item.
     *
     * @param $key
     * @param $value
     * @param null $expiration
     *
     * @return bool
     */
    public function set($key, $value, $expiration = null)
    {
        return $this->cache->set($key, $value, $expiration);
    }

    /**
     * Replace an item under an existing key.
     *
     * @param $key
     * @param $value
     * @param null $expiration
     *
     * @return bool
     */
    public function replace($key, $value, $expiration = null)
    {
        return $this->cache->replace($key, $value, $expiration);
    }

    /**
     * Retrieve an item.
     *
     * @param $key
     *
     * @return mixed
     */
    public function get($key)
    {
        return $this->cache->get($key);
    }

    /**
     * Delete an item.
     *
     * @param $key
     * @param int $time
     *
     * @return bool
     */
    public function delete($key, $time = 0)
    {
        return $this->cache->delete($key, $time);
    }
}

$mem = new BaseMemcached();