织梦模板dedecms的自定义表单带上当前页面的url地址

{ ${$fieldinfo[0]} = FilterSearch(stripslashes(${$fieldinfo[0]})); ${$fieldinfo[0]} = addslashes(${$fieldinfo[0]}); }

	if($fieldinfo[0] == 'ymurl'){${$fieldinfo[0]}=$_SERVER['HTTP_REFERER'];}