public function action_create_qrcode()
{
$param = array('expire_seconds' => 600, 'action_name' => 'QR_SCENE', 'action_info' => array('scene' => array('scene_id' => '123')));
$wx = new Weixin();
$ret = $wx->create_qrcode($param);
var_dump($ret);
//$url = 'https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket='.$ret['ticket'];
//echo $url;
}
