use wenhainan\filecache;
//config. it has a default config.
$cache = new filecache();
//设置缓存 set key cache
$cache->set('key','value',60);   //set key = value  expire = 60s
//获取缓存  get key cache
$cache->get('key');
//删除缓存  delete cache 
$cache->del('key');

自定义配置

//自定义缓存配置
$config = [
    'expire'=>3600,  //expire time , unit seconds  默认缓存时间，单位秒
    'path' =>'/tmp'  //self dir
];
$cache = new filecache($config);

配置要求

PHP 5.6+