/** * Description:静态方法,单例访问统一入口 * @return Singleton:返回应用中的唯一对象实例 */ public static function getInstance() { if (!self::$_instance instanceof self) { self::$_instance = new self(); } return self::$_instance; }
public function select_row($sql, $bind = array()) { $this->_link = Our_Mysql::getInstance(); return $this->_link->select_row($sql, $bind); }