/**
* 初始化
* @throws App_Exception
* @return class
*/
public static function init()
{
$f = App_Info::config('LIMIT_ENABLE');
if (!$f) {
return;
}
$c = App_Info::config('LIMIT_CONFIG');
$ins = new Limit_Visit();
self::$over_limit = !$ins->visit($c['interval'], $c['count'], $c['key']);
}
/**
* 获取单例
*/
public static function get_instance()
{
if (!self::$_instance) {
self::$_instance = new self();
}
return self::$_instance;
}
