<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2016 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: 流年 <liu21st@gmail.com>
// +----------------------------------------------------------------------

// 应用公共文件
/**
 * 生成签名
 * _字符开头的变量不参与签名
 */
function __makeSign($params = [], $app_secret = '')
{
	unset($params['sign']);
	return __getOrderMd5($params, $app_secret);
}

/**
 * 计算ORDER的MD5签名
 */
function __getOrderMd5($params = [] , $app_secret = '')
{
	ksort($params);
	$params['key'] = $app_secret;
	return strtolower(md5(urldecode(http_build_query($params))));
}