PHP 微信支付类 demo - 快网idc优惠网

一切尽在代码中，代码附有注释，欢迎大家参考。

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<?php

class WxpayService

{

protected $mchid;

protected $appid;

protected $key;

public function __construct($mchid, $appid, $key)

{

$this->mchid = $mchid; // 微信支付商户号 PartnerID 通过微信支付商户资料审核后邮件发送

$this->appid = $appid; //公众号APPID 通过微信支付商户资料审核后邮件发送

$this->key = $key; //https://pay.weixin.qq.com 帐户设置-安全设置-API安全-API密钥-设置API密钥

}

/**

* @param string $openid 调用【网页授权获取用户信息】接口获取到用户在该公众号下的Openid

* @param float $totalFee 收款总费用单位元

* @param string $outTradeNo 唯一的订单号

* @param string $orderName 订单名称

* @param string $notifyUrl 支付结果通知url 不要有问号

* https://mp.weixin.qq.com/ 微信支付-开发配置-测试目录

* 测试目录 http://mp.izhanlue.com/paytest/ 最后需要斜线，(需要精确到二级或三级目录)

* @return string

*/

public function createJsBizPackage($openid, $totalFee, $outTradeNo, $orderName, $notifyUrl, $timestamp)

{

$config = array(

'mch_id' => $this->mchid,

'appid' => $this->appid,

'key' => $this->key,

);

$unified = array(

'appid' => $config['appid'],

'attach' => '支付', //商家数据包，原样返回

'body' => $orderName,

'mch_id' => $config['mch_id'],

'nonce_str' => self::createNonceStr(),

'notify_url' => $notifyUrl,

'openid' => $openid, //rade_type=JSAPI，此参数必传

'out_trade_no' => $outTradeNo,

'spbill_create_ip' => '127.0.0.1',

'total_fee' => intval($totalFee * 100), //单位转为分

'trade_type' => 'JSAPI',

);

$unified['sign'] = self::getSign($unified, $config['key']);

$responseXml = self::curlPost('https://api.mch.weixin.qq.com/pay/unifiedorder', self::arrayToXml($unified));

/*

<xml>

<return_code><![CDATA[SUCCESS]]></return_code>

<return_msg><![CDATA[OK]]></return_msg>

<appid><![CDATA[wx00e5904efec77699]]></appid>

<mch_id><![CDATA[1220647301]]></mch_id>

<nonce_str><![CDATA[1LHBROsdmqfXoWQR]]></nonce_str>

<sign><![CDATA[ACA7BC8A9164D1FBED06C7DFC13EC839]]></sign>

<result_code><![CDATA[SUCCESS]]></result_code>

<prepay_id><![CDATA[wx2015032016590503f1bcd9c30421762652]]></prepay_id>

<trade_type><![CDATA[JSAPI]]></trade_type>

</xml>

*/

$unifiedOrder = simplexml_load_string($responseXml, 'SimpleXMLElement', LIBXML_NOCDATA);

if ($unifiedOrder === false) {

die('parse xml error');

}

if ($unifiedOrder->return_code != 'SUCCESS') {

die($unifiedOrder->return_msg);

}

if ($unifiedOrder->result_code != 'SUCCESS') {

die($unifiedOrder->err_code);

/*

NOAUTH 商户无此接口权限

NOTENOUGH 余额不足

ORDERPAID 商户订单已支付

ORDERCLOSED 订单已关闭

SYSTEMERROR 系统错误

APPID_NOT_EXIST APPID不存在

MCHID_NOT_EXIST MCHID不存在

APPID_MCHID_NOT_MATCH appid和mch_id不匹配

LACK_PARAMS 缺少参数

OUT_TRADE_NO_USED 商户订单号重复

SIGNERROR 签名错误

XML_FORMAT_ERROR XML格式错误

REQUIRE_POST_METHOD 请使用post方法

POST_DATA_EMPTY post数据为空

NOT_UTF8 编码格式错误

*/

}

//$unifiedOrder->trade_type 交易类型调用接口提交的交易类型，取值如下：JSAPI，NATIVE，APP

//$unifiedOrder->prepay_id 预支付交易会话标识 微信生成的预支付回话标识，用于后续接口调用中使用，该值有效期为2小时

//$unifiedOrder->code_url 二维码链接 trade_type为NATIVE是有返回，可将该参数值生成二维码展示出来进行扫码支付

$arr = array(

"appId" => $config['appid'],

"timeStamp" => $timestamp,

"nonceStr" => self::createNonceStr(),

"package" => "prepay_id=" . $unifiedOrder->prepay_id,

"signType" => 'MD5',

);

$arr['paySign'] = self::getSign($arr, $config['key']);

return $arr;

}

public function notify()

{

$config = array(

'mch_id' => $this->mchid,

'appid' => $this->appid,

'key' => $this->key,

);

$postStr = $GLOBALS["HTTP_RAW_POST_DATA"];

//error_log($postStr, 3, './str.txt');

/*

$postStr = '<xml>

<appid><![CDATA[wx00e5904efec77699]]></appid>

<attach><![CDATA[支付测试]]></attach>

<bank_type><![CDATA[CMB_CREDIT]]></bank_type>

<cash_fee><![CDATA[1]]></cash_fee>

<fee_type><![CDATA[CNY]]></fee_type>

<is_subscribe><![CDATA[Y]]></is_subscribe>

<mch_id><![CDATA[1220647301]]></mch_id>

<nonce_str><![CDATA[a0tZ41phiHm8zfmO]]></nonce_str>

<openid><![CDATA[oU3OCt5O46PumN7IE87WcoYZY9r0]]></openid>

<out_trade_no><![CDATA[550bf2990c51f]]></out_trade_no>

<result_code><![CDATA[SUCCESS]]></result_code>

<return_code><![CDATA[SUCCESS]]></return_code>

<sign><![CDATA[F6F519B4DD8DB978040F8C866C1E6250]]></sign>

<time_end><![CDATA[20150320181606]]></time_end>

<total_fee>1</total_fee>

<trade_type><![CDATA[JSAPI]]></trade_type>

<transaction_id><![CDATA[1008840847201503200034663980]]></transaction_id>

</xml>';

*/

$postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);

if ($postObj === false) {

die('parse xml error');

}

if ($postObj->return_code != 'SUCCESS') {

die($postObj->return_msg);

}

if ($postObj->result_code != 'SUCCESS') {

die($postObj->err_code);

}

$arr = (array)$postObj;

unset($arr['sign']);

if (self::getSign($arr, $config['key']) == $postObj->sign) {

// $mch_id = $postObj->mch_id; //微信支付分配的商户号

// $appid = $postObj->appid; //微信分配的公众账号ID

// $openid = $postObj->openid; //用户在商户appid下的唯一标识

// $transaction_id = $postObj->transaction_id;//微信支付订单号

// $out_trade_no = $postObj->out_trade_no;//商户订单号

// $total_fee = $postObj->total_fee; //订单总金额，单位为分

// $is_subscribe = $postObj->is_subscribe; //用户是否关注公众账号，Y-关注，N-未关注，仅在公众账号类型支付有效

// $attach = $postObj->attach;//商家数据包，原样返回

// $time_end = $postObj->time_end;//支付完成时间

echo '<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>';

return $postObj;

}

/**

* curl get

*

* @param string $url

* @param array $options

* @return mixed

*/

public static function curlGet($url = '', $options = array())

{

$ch = curl_init($url);

curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

curl_setopt($ch, CURLOPT_TIMEOUT, 30);

if (!empty($options)) {

curl_setopt_array($ch, $options);

}

//https请求不验证证书和host

curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);

curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);

$data = curl_exec($ch);

curl_close($ch);

return $data;

}

public static function curlPost($url = '', $postData = '', $options = array())

{

if (is_array($postData)) {

$postData = http_build_query($postData);

}

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, $url);

curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

curl_setopt($ch, CURLOPT_POST, 1);

curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);

curl_setopt($ch, CURLOPT_TIMEOUT, 30); //设置cURL允许执行的最长秒数

if (!empty($options)) {

curl_setopt_array($ch, $options);

}

//https请求不验证证书和host

curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);

curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);

$data = curl_exec($ch);

curl_close($ch);

return $data;

}

public static function createNonceStr($length = 16)

{

$chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';

$str = '';

for ($i = 0; $i < $length; $i++) {

$str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);

}

return $str;

}

public static function arrayToXml($arr)

{

$xml = "<xml>";

foreach ($arr as $key => $val) {

if (is_numeric($val)) {

$xml .= "<" . $key . ">" . $val . "</" . $key . ">";

} else

$xml .= "<" . $key . "><![CDATA[" . $val . "]]></" . $key . ">";

}

$xml .= "</xml>";

return $xml;

}

/**

* 例如：

* appid： wxd930ea5d5a258f4f

* mch_id： 10000100

* device_info： 1000

* Body： test

* nonce_str： ibuaiVcKdpRxkhJA

* 第一步：对参数按照 key=value 的格式，并按照参数名 ASCII 字典序排序如下：

* stringA="appid=wxd930ea5d5a258f4f&body=test&device_info=1000&mch_i

* d=10000100&nonce_str=ibuaiVcKdpRxkhJA";

* 第二步：拼接支付密钥：

* stringSignTemp="stringA&key=192006250b4c09247ec02edce69f6a2d"

* sign=MD5(stringSignTemp).toUpperCase()="9A0A8659F005D6984697E2CA0A9CF3B7"

*/

public static function getSign($params, $key)

{

ksort($params, SORT_STRING);

$unSignParaString = self::formatQueryParaMap($params, false);

$signStr = strtoupper(md5($unSignParaString . "&key=" . $key));

return $signStr;

}

protected static function formatQueryParaMap($paraMap, $urlEncode = false)

{

$buff = "";

ksort($paraMap);

foreach ($paraMap as $k => $v) {

if (null != $v && "null" != $v) {

if ($urlEncode) {

$v = urlencode($v);

}

$buff .= $k . "=" . $v . "&";

}

$reqPar = '';

if (strlen($buff) > 0) {

$reqPar = substr($buff, 0, strlen($buff) - 1);

}

return $reqPar;

}

以上代码大家都能看得懂吧，有哪里不明白的地方欢迎给我留言，我会在第一时间和大家取得联系的。谢谢大家对快网idc网站的支持。

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