public static function GetInstance()
{
if (self::$instance == null) {
self::$instance = new model();
}
return self::$instance;
}
/**
* 单例模式
*
* @return obj
*/
public function getInstance(){
if(!isset(self::$instance)) {
$class = __CLASS__;
self::$instance = new $class();
}
return self::$instance;
}