本文实例讲述了PHP实现微信退款的方法。分享给大家供大家参考，具体如下：
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$obj = new WXRefund('参数');$obj->refundApi(); |
直接能用 公众号的参数 自己加上吧 只能帮你们到这了！
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<?phpnamespace Wechat;/** * 微信退款 * @author zzy * @version $V1.0.0$ * @date 2018-11-9 */class WXRefund{ protected $SSLCERT_PATH ='';//证书 protected $SSLKEY_PATH = '';//证书 protected $opUserId = '';//商户号 protected $key = '';//API密钥 protected $appId = '';//appId function __construct($outTradeNo, $totalFee, $outRefundNo, $refundFee) { //初始化退款类需要的变量 $this->totalFee = $totalFee;//订单金额 $this->refundFee = $refundFee;//退款金额 $this->outTradeNo = $outTradeNo;//订单号 $this->outRefundNo = $outRefundNo;//退款订单 } /** * 通过微信api进行退款流程 唯一对外接口 * @return string */ public function refundApi() { $parma = array( 'appid' => $this->appId, 'mch_id' => $this->opUserId, 'nonce_str' => randoms(32),//这个是随机数 自己封装去吧。。。 'out_refund_no' => $this->outRefundNo, 'out_trade_no' => $this->outTradeNo, 'total_fee' => intval($this->totalFee * 100), 'refund_fee' => intval($this->refundFee * 100), ); $parma['sign'] = $this->getSign($parma, $this->key); $xmldata = $this->arrayToXml($parma); $xmlresult = $this->postXmlSSLCurl($xmldata, 'https://api.mch.weixin.qq.com/secapi/pay/refund'); $result = $this->arrayToXml($xmlresult); return $result; } /** * 数组转xml * @param $arr * @return string */ protected function arrayToXml($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; } /** * 签名加密 * @param $params * @param $key */ protected function getSign($params, $key) { ksort($params, SORT_STRING); $unSignParaString = $this->formatQueryParaMap($params, false); return $signStr = strtoupper(md5($unSignParaString . "&key=" . $key)); } /** * 排序 * @param $paraMap * @param bool $urlEncode * @return bool|string */ protected function formatQueryParaMap($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; } /** * 需要使用证书的请求 * @param $xml * @param $url * @param int $second * @return bool|mixed */ protected function postXmlSSLCurl($xml, $url, $second = 30) { $ch = curl_init(); curl_setopt($ch, CURLOPT_TIMEOUT, $second); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE); curl_setopt($ch, CURLOPT_HEADER, FALSE); curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE); curl_setopt($ch, CURLOPT_SSLCERTTYPE, 'PEM'); curl_setopt($ch, CURLOPT_SSLCERT, $this->SSLCERT_PATH); curl_setopt($ch, CURLOPT_SSLKEYTYPE, 'PEM'); curl_setopt($ch, CURLOPT_SSLKEY, $this->SSLKEY_PATH); curl_setopt($ch, CURLOPT_POST, true); curl_setopt($ch, CURLOPT_POSTFIELDS, $xml); $data = curl_exec($ch); if ($data) { curl_close($ch); return $data; } else { $error = curl_errno($ch); echo "curl出错，错误码:$error" . "<br>"; curl_close($ch); return false; } }} |
希望本文所述对大家PHP程序设计有所帮助。
