v2.2.34: Update helper.php

/**
 * 设置、获取cookie 
 */
if(!function_exists('cookie') && function_exists('xcookie')){
    function cookie($name, $value = NULL, $expire = 0)
    {
        return xcookie($name, $value, $expire);
    }
}
/**
 * 删除COOKIE 
 */ 
if(!function_exists('cookie_delete') && function_exists('xcookie_delete')){
    function cookie_delete($name)
    {
        return xcookie_delete($name);
    }
}