The Redis multi-Library selection function of PHP implements a single-class code share

This article mainly introduces the implementation of the Redis multi-Library selection of PHP single-case class, combined with the example of PHP to use a single-case model to achieve the Redis database multi-Library selection function, the need for friends can refer to the next

In this paper, we describe the Redis multi-Library selection function of PHP implementation of the Singleton class. Share to everyone for your reference, as follows:

Objective

QQ Group has the same learning Redis how to make a multi-Library selection, with PHP to achieve a bit, but also hope that you have a lot of guidance

Code

<?phpclass multiredisconnect{/** * hostname * * @var String */Const REDISHOSTNAME = "127.0.0.1";  /** * Port * * @var int */CONST REDISPORT = 6379;  /** * Timeout * * @var int */CONST REDISTIMEOUT = 0;  /** * Password * * @var String */Const REDISPASSWORD = "123456";  /** * Class Singleton array * * @var array */private static $instance = Array ();  /** * REDIS Connection Handle * * @var Object */Private $redis;  /** * Hash Key * * @var int */private $hash; /** * Privatisation constructor to prevent out-of-class instantiation * * @param int $dbnumber */Private Function __construct ($dbnumber) {$dbnumber = (int    ) $dbnumber;    $this->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 () {}/** * Get class Singleton * * @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];  /** * Gets the connection instance of Redis * * @return Object */Public function Getredisconnect () {return $this->redis;    /** * Cleanup work when closing a singleton */Public Function __destruct () {$key = $this->hash;    Self:: $instances [$key]->redis->close ();  Self:: $instances [$key] = null; }}?>