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<?php

class RedisPackage

{

    protected static $handler = null;

    protected $options = [

        'host' => '127.0.0.1',

        'port' => 6379,

        'password' => '这是你是之前设置的redis密码',

        'select' => 0,

        'timeout' => 20,//关闭时间 0:代表不关闭

        'expire' => 0,

        'persistent' => false,

        'prefix' => '',

    ];

    public function __construct($options = [])

    {

        if (!extension_loaded('redis')) {   //判断是否有扩展(如果你的apache没reids扩展就会抛出这个异常)

            throw new \BadFunctionCallException('not support: redis');

        }

        if (!empty($options)) {

            $this->options = array_merge($this->options, $options);

        }

        $func = $this->options['persistent'] ? 'pconnect' : 'connect';     //判断是否长连接

        self::$handler = new \Redis;

        self::$handler->$func($this->options['host'], $this->options['port'], $this->options['timeout']);

        if ('' != $this->options['password']) {

            self::$handler->auth($this->options['password']);

        }

        if (0 != $this->options['select']) {

            self::$handler->select($this->options['select']);

        }

    }

    /**

     * 写入缓存

     * @param string $key 键名

     * @param string $value 键值

     * @param int $exprie 过期时间 0:永不过期

     * @return bool

     */

    public static function set($key, $value, $exprie = 0)

    {

        if ($exprie == 0) {

            $set = self::$handler->set($key, $value);

        } else {

            $set = self::$handler->setex($key, $exprie, $value);

        }

        return $set;

    }

    /**

     * 读取缓存

     * @param string $key 键值

     * @return mixed

     */

    public static function get($key)

    {

        $fun = is_array($key) ? 'Mget' : 'get';

        return self::$handler->{$fun}($key);

    }

    /**

     * 获取值长度

     * @param string $key

     * @return int

     */

    public static function lLen($key)

    {

        return self::$handler->lLen($key);

    }

    /**

     * 将一个或多个值插入到列表头部

     * @param $key

     * @param $value

     * @return int

     */

    public static function LPush($key, $value, $value2 = null, $valueN = null)

    {

        return self::$handler->lPush($key, $value, $value2, $valueN);

    }

    /**

     * 移出并获取列表的第一个元素

     * @param string $key

     * @return string

     */

    public static function lPop($key)

    {

        return self::$handler->lPop($key);

    }

}

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import('RedisPackage', EXTEND_PATH);

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#设置

\RedisPackage::set('要设置的key','这是value');

#获取

$key = \RedisPackage::get('已设置的key'));

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$redis = new \Redis();

//创建一个redis对象，下面可以直接使用$redis访问到redis对象

$redis->connect('127.0.0.1', 6379);

//连接redis数据库，127.0.0.1表示本地（如果线上redis和php目录在同一个IP，则一样使用127.0.0.1），6379为redis端口号，若线上没有修改则默认是这个

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$redis ->set( "test" , "redis 连接成功");

echo $redis ->get( "test");

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$redis->exists('active_worker_list')

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$result = $redis->set('active_worker_list',$r)

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$result = $redis->set('active_worker_list',json_encode($r,true))

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$result = $redis->get('active_worker_list')

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$result = json_decode($redis->get('active_worker_list'),true);

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$redis->del('active_worker_list');