class redisDB{

   

    private $redis; //redis对象

   

   

    /**

     * 初始化Redis

     * $config = array(

     *  'server' => '127.0.0.1' 服务器

     *  'port'   => '6379' 端口号

     * )

     * @param array $config

     */

    function __construct($config = array()){

        $this->redis = new Redis();

        $this->redis->connect(REDIS_SERVER,REDIS_PORT);

        return $this->redis;

    }

   

    /**

     * 设置值

     * @param string $key KEY名称

     * @param string|array $value 获取得到的数据

     * @param int $timeOut 时间

     */

    public function set($key, $value, $timeOut = ,$type='json') {

        if($type=='serialize')

        {

            $value = serialize($value);

        }

        else

        {

            $value = json_encode($value);

        }

           

        $retRes = $this->redis->set($key, $value);

        if ($timeOut > ) $this->redis->setTimeout($key, $timeOut);

        return $retRes;

    }

   

    /**

     * 通过KEY获取数据

     * @param string $key KEY名称

     */

    public function get($key,$type='json') {

        $result = $this->redis->get($key);

           

        if($type=='serialize')

        {

            return unserialize($result);

        }

        else

        {

            return json_decode($result);

        }

    }

   

    /**

     * 删除一条数据

     * @param string $key KEY名称

     */

    public function delete($key) {

        return $this->redis->delete($key);

    }

   

    /**

     * 清空数据

     */

    public function flushAll() {

        return $this->redis->flushAll();

    }

   

    /**

     * 数据入队列

     * @param string $key KEY名称

     * @param string|array $value 获取得到的数据

     * @param bool $right 是否从右边开始入

     */

    public function push($key, $value ,$right = true) {

        $value = json_encode($value);

        return $right ? $this->redis->rPush($key, $value) : $this->redis->lPush($key, $value);

    }

   

    /**

     * 数据出队列

     * @param string $key KEY名称

     * @param bool $left 是否从左边开始出数据

     */

    public function pop($key , $left = true) {

        $val = $left ? $this->redis->lPop($key) : $this->redis->rPop($key);

        return json_decode($val);

    }

   

    /**

     * 数据自增

     * @param string $key KEY名称

     */

    public function increment($key) {

        return $this->redis->incr($key);

    }

   

    /**

     * 数据自减

     * @param string $key KEY名称

     */

    public function decrement($key) {

        return $this->redis->decr($key);

    }

   

    /**

     * key是否存在，存在返回ture

     * @param string $key KEY名称

     */

    public function exists($key) {

        return $this->redis->exists($key);

    }

   

    /**

     * 返回redis对象

     * redis有非常多的操作方法，我们只封装了一部分

     * 拿着这个对象就可以直接调用redis自身方法

     */

    public function redis() {

        return $this->redis;

    }

}

include 'redis.php';

$redis =  new redisDB();

$key = 'fields';

$value = '好脚本';   //value可以是字符串或者数组

$redis->set($key,$value);

//获取fields的值也很简单

$fvalue = $redis->get('fields');

print_r($fvalue);