兩個檔案 test.php Re.class.php

Re.class.php採用單列模式保證一個入口  只有一次連線  避免資源浪費

<?php
//redis操作封裝類
class Re{private static $redis;
public $handle;
//redis連結
private function __construct(){}private function __clone(){}public function connect($options=array()){$host = isset($options['host'])? $options['host']:'127.0.0.1'
 
;
$port = isset($options['port'])? $options['port']:6379;
$this->handle = new Redis();
$this->handle->connect($host,$port);
}static public  function getInstance(){$param = func_get_args();
if(is_null(self::$redis) || !isset(self::$redis)){self::$redis = new self();
self::$redis->connect($param
 
);
}return self::$redis;
}//刪除連結串列的所有元素
public function Ldelall($key){$len = $this->handle->Llen($key);
for($i=0;$i<$len;$i++){$this->handle->rPop($key);
}}}

test.php

require_once('./Re.class.php');
$re = Re::getInstance();
print_r($re->handle);
$re2 = Re::getInstance();
 print_r($re2
 
->handle);

Redis Object ( [socket] => Resource id #4 ) Redis Object ( [socket] => Resource id #4 )

同一個例項成功