PHP Cache Class

cache.php

<?php
/**
 * 缓存类
 */
class Cache {

    private $filename;

    /**
     * __construct
     * @param String $cache_filename 缓存文件名
     */
    function __construct($cache_filename) {
        $this->filename = $cache_filename;
    }

    /**
     * 写入缓存
     * @param  Array $data  缓存数据
     * @return Int       写入字节数
     */
    public function write($data) {
        $ret = file_put_contents($this->filename, json_encode($data));
        return $ret;
    }

    /**
     * 读取缓存
     * @return stdClass 缓存数据
     */
    public function read() {
        $content = file_get_contents($this->filename);
        return json_decode($content, true);
    }

}