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reverse.php
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reverse.php
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<?php
/**
* 撤销订单
* 支付交易返回失败或支付系统超时，调用该接口撤销交易。如果此订单用户支付失败，微信支付系统会将此订单关闭；如果用户支付成功，微信支付系统会将此订单资金退还给用户。
* 注意：7天以内的交易单可调用撤销，其他正常支付的单如需实现相同功能请调用申请退款API。
* 1.撤销订单要求必传证书，需要到https://pay.weixin.qq.com 账户中心->账户设置->API安全->下载证书
* 2.错误码参照 ：https://pay.weixin.qq.com/wiki/doc/api/micropay.php?chapter=9_11&index=3
*/
header('Content-type:text/html; Charset=utf-8');
/* 配置开始 */
$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
$appid = ''; //微信支付申请对应的公众号的APPID
$appKey = ''; //微信支付申请对应的公众号的APP Key
$apiKey = ''; //https://pay.weixin.qq.com 帐户设置-安全设置-API安全-API密钥-设置API密钥
//填写证书所在位置，证书在https://pay.weixin.qq.com 账户中心->账户设置->API安全->下载证书，下载后将apiclient_cert.pem和apiclient_key.pem上传到服务器。
$apiclient_cert = getcwd().'/cert/apiclient_cert.pem';
$apiclient_key = getcwd().'/cert/apiclient_key.pem';
$transaction_id = ''; //微信的订单号，优先使用。微信订单号与商户订单号不能同时为空
$out_trade_no = ''; //商户订单号。微信订单号与商户订单号不能同时为空
/* 配置结束 */
$wxPay = new WxpayService($mchid,$appid,$appKey,$apiKey);
$wxPay->setApiclientCert($apiclient_cert);
$wxPay->setApiclientKey($apiclient_key);
$wxPay->setTransactionId($transaction_id);
$wxPay->setOutTradeNo($out_trade_no);
$result = $wxPay->doReverse();
echo 'success';
class WxpayService
{
protected $mchid;
protected $appid;
protected $appKey;
protected $apiKey;
protected $apiclient_cert;
protected $apiclient_key;
protected $transactionId;
protected $outTradeNo;
public $data = null;
public function __construct($mchid, $appid, $appKey,$key)
{
$this->mchid = $mchid;
$this->appid = $appid;
$this->appKey = $appKey;
$this->apiKey = $key;
}
public function setApiclientCert($apiclient_cert)
{
$this->apiclient_cert = $apiclient_cert;
}
public function setApiclientKey($apiclient_key)
{
$this->apiclient_key = $apiclient_key;
}
public function setTransactionId($transaction_id)
{
$this->transactionId = $transaction_id;
}
public function setOutTradeNo($out_trade_no)
{
$this->outTradeNo = $out_trade_no;
}
/**
* 撤销订单
*/
public function doReverse()
{
$unified = array(
'mch_id' => $this->mchid,
'appid' => $this->appid,
'transaction_id' => $this->transactionId,
'out_trade_no' => $this->outTradeNo,
'nonce_str' => self::createNonceStr(),
);
$unified['sign'] = self::getSign($unified, $this->apiKey);
$responseXml = $this->curlPost('https://api.mch.weixin.qq.com/secapi/pay/reverse', self::arrayToXml($unified));
$unifiedOrder = simplexml_load_string($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($unifiedOrder->err_code.':'.$unifiedOrder->err_code_des);
}
return true;
}
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 $data;
}
public function curlPost($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($ch, CURLOPT_SSL_VERIFYHOST, false);
//第一种方法，cert 与 key 分别属于两个.pem文件
//默认格式为PEM，可以注释
curl_setopt($ch,CURLOPT_SSLCERTTYPE,'PEM');
curl_setopt($ch,CURLOPT_SSLCERT,$this->apiclient_cert);
//默认格式为PEM，可以注释
curl_setopt($ch,CURLOPT_SSLKEYTYPE,'PEM');
curl_setopt($ch,CURLOPT_SSLKEY,$this->apiclient_key);
//第二种方式，两个文件合成一个.pem文件
// curl_setopt($ch,CURLOPT_SSLCERT,getcwd().'/all.pem');
$data = curl_exec($ch);
//var_dump($data);die;
curl_close($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 . ">";
}
$xml .= "</xml>";
file_put_contents('1.txt',$xml);
return $xml;
}
public static function getSign($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;
}
}
?>