Code sharing on singleton class implementation of Redis multi-library selection function in PHP

This article mainly introduces the singleton class of the Redis multi-library selection function implemented by PHP, and analyzes the singleton mode of PHP to implement the multi-library selection function of the redis database in the form of examples. Friends in need can refer to it

The example of this article describes the Redis multi-database selection function singleton class implemented in PHP. Share it with everyone for your reference, the details are as follows:

Preface

Some students in the QQ group asked how to select multiple libraries in redis, using PHP I have implemented it, and I hope you can give me more advice

code

hash = $dbnumber; $this->redis = new Redis(); $this->redis->connect(self::REDISHOSTNAME, self::REDISPORT, self::REDISTIMEOUT); $this->redis->auth(self::REDISPASSWORD); $this->redis->select($dbnumber); } private function __clone () {} /** * 获取类单例 * * @param int $dbnumber * @return object */ public static function getRedisInstance ($dbnumber) { $hash = (int) $dbnumber; if (! isset(self::$instance[$hash])) { self::$instance[$hash] = new MultiRedisConnect($dbnumber); } return self::$instance[$hash]; } /** * 获取redis的连接实例 * * @return object */ public function getRedisConnect () { return $this->redis; } /** * 关闭单例时做清理工作 */ public function __destruct () { $key = $this->hash; self::$instances[$key]->redis->close(); self::$instances[$key] = null; } } ?>

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