本文实例讲述了微信开放平台移动应用集成微信支付功能。分享给大家供大家参考。具体分析如下:
WechatAppPay文件代码如下:
复制代码 代码如下:
<"get access token failed:{$result['errmsg']}");
}
return $result['access_token'];
}
/**
* 取预支付会话标识
*
* @throws \Exception
* @return string
*/
protected function getPrepayid()
{
$data = json_encode($this->config);
$url = sprintf(self::POST_ORDER_URL, $this->accessToken);
$result = json_decode( $this->postUrl($url, $data), true );
if( isset($result['errcode']) && $result['errcode'] != 0 ) {
throw new \Exception($result['errmsg']);
}
if( !isset($result['prepayid']) ) {
throw new \Exception('get prepayid failed, url request error.');
}
return $result['prepayid'];
}
/**
* 组装预支付参数
*
* @throws \Exception
*/
protected function generateConfig()
{
try{
$this->config = [
'appid' => $this->appid,
'traceid' => $this->traceid,
'noncestr' => $this->getRandomStr(),
'timestamp' => time(),
'package' => $this->generatePackage(),
'sign_method' => $this->sign_method,
];
$this->config['app_signature'] = $this->generateSign();
} catch(\Exception $e) {
throw new \Exception($e->getMessage());
}
}
/**
* 生成package字段
*
* 生成规则:
* 1、生成sign的值signValue
* 2、对package参数再次拼接成查询字符串,值需要进行urlencode
* 3、将sign=signValue拼接到2生成的字符串后面得到最终的package字符串
*
* 第2步urlencode空格需要编码成%20而不是+
*
* RFC 1738会把 空格编码成+
* RFC 3986会把空格编码成%20
*
* @return string
*/
protected function generatePackage()
{
$this->package['sign'] = $this->signData($this->package);
return http_build_query($this->package, '', '&', PHP_QUERY_RFC3986);
}
/**
* 生成签名
*
* @return string
*/
protected function generateSign()
{
$signArray = [
'appid' => $this->appid,
'appkey' => $this->paySignkey,
'noncestr' => $this->config['noncestr'],
'package' => $this->config['package'],
'timestamp' => $this->config['timestamp'],
'traceid' => $this->traceid,
];
return $this->sha1Sign($signArray);
}
/**
* 签名数据
*
* 生成规则:
* 1、字典排序,拼接成查询字符串格式,不需要urlencode
* 2、上一步得到的字符串最后拼接上key=paternerKey
* 3、MD5哈希字符串并转换成大写得到sign的值signValue
*
* @param array $data 待签名数据
* @return string 最终签名结果
*/
protected function signData($data)
{
ksort($data);
$str = $this->arrayToString($data);
$str .= "&key={$this->partnerKey}";
return strtoupper( $this->signMd5($str) );
}
/**
* sha1签名
* 签名规则
* 1、字典排序
* 2、拼接查询字符串
* 3、sha1运算
*
* @param array $arr
* @return string
*/
protected function sha1Sign($arr)
{
ksort($arr);
return sha1( $this->arrayToString($arr) );
}
}
希望本文所述对大家的php程序设计有所帮助。