本文實例講述了PHP開發(fā)實現(xiàn)微信退款功能。分享給大家供大家參考,具體如下:
最近在調(diào)微信退款接口,發(fā)現(xiàn)有許多坑,更大家分享一下
① 要是在測試的時候,網(wǎng)頁提示 curl 58 說明 證書的路徑出現(xiàn)問題(這里要填物理路徑,也就是絕對路徑)
② 網(wǎng)頁提示curl 52 說明你的證書引入少了,在官方的demo上只有兩個證書 apiclient_cert.pem和 apiclient_key.pem 你還需要引入一個證書 rootca.pem,這個證書需要你登錄到
你的商戶平臺上下載
③ 要是網(wǎng)頁提示 "HTTP/1.1 200 OK Server: nginx Date: Tue, 20 Jun 2017 08:08:01 GMT Content-Type: text/plain Content-Length: 852 Connection: keep-alive Keep-Alive: timeout=8
說明你的代碼是沒有問題的 ,應(yīng)該是參數(shù)出錯了 我之前錯的地方是把 out_refund_no和 out_trade_no寫的一樣,微信官網(wǎng)上也是這樣寫的 ,但是就是出現(xiàn)問題,我把out_refund_no 修改了一下 發(fā)現(xiàn)可以了
注意:金額的單位是分
下面就是我寫的接口:
- function Home_index() {
- date_default_timezone_set("Asia/Shanghai");
- $date = date("YmdHis");
- $appid = "";
- $mch_id = "";
- $out_trade_no = "14487658021497944120";
- $op_user_id = "";
- $out_refund_no = $date;
- $total_fee = "500";
- $refund_fee = "500";
- // $transaction_id = "4009542001201706206596667604";
- $key = "";
- $nonce_str = nonceStr();
- $ref = strtoupper(md5("appid=$appid&mch_id=$mch_id&nonce_str=$nonce_str&op_user_id=$op_user_id"
- . "&out_refund_no=$out_refund_no&out_trade_no=$out_trade_no&refund_fee=$refund_fee&total_fee=$total_fee"
- . "&key=$key")); //sign加密MD5
- $refund = array(
- 'appid' =>$appid, //應(yīng)用ID,固定
- 'mch_id' => $mch_id, //商戶號,固定
- 'nonce_str' => $nonce_str, //隨機字符串
- 'op_user_id' => $op_user_id, //操作員
- 'out_refund_no' => $out_refund_no, //商戶內(nèi)部唯一退款單號
- 'out_trade_no' => $out_trade_no, //商戶訂單號,pay_sn碼 1.1二選一,微信生成的訂單號,在支付通知中有返回
- // 'transaction_id'=>'1',//微信訂單號 1.2二選一,商戶側(cè)傳給微信的訂單號
- 'refund_fee' => $refund_fee, //退款金額
- 'total_fee' => $total_fee, //總金額
- 'sign' => $ref//簽名
- );
- $url = "https://api.mch.weixin.qq.com/secapi/pay/refund";
- ; //微信退款地址,post請求
- $xml = arrayToXml($refund);
- $ch = curl_init();
- curl_setopt($ch, CURLOPT_URL, $url);
- curl_setopt($ch, CURLOPT_HEADER, 1);
- curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
- curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 1); //證書檢查
- if ($useCert == true) {
- // 設(shè)置證書
- curl_setopt($ch, CURLOPT_SSLCERTTYPE, 'pem');
- curl_setopt($ch, CURLOPT_SSLCERT, dirname(__FILE__) . '/WxPay/cert/apiclient_cert.pem');
- curl_setopt($ch, CURLOPT_SSLCERTTYPE, 'pem');
- curl_setopt($ch, CURLOPT_SSLKEY, dirname(__FILE__) . '/WxPay/cert/apiclient_key.pem');
- curl_setopt($ch, CURLOPT_SSLCERTTYPE, 'pem');
- curl_setopt($ch, CURLOPT_CAINFO, dirname(__FILE__) . '/WxPay/cert/rootca.pem');
- }
- curl_setopt($ch, CURLOPT_POST, 1);
- curl_setopt($ch, CURLOPT_POSTFIELDS, $xml);
- $xml = curl_exec($ch);
- // 返回結(jié)果0的時候能只能表明程序是正常返回不一定說明退款成功而已
- if ($xml) {
- curl_close($ch);
- // 把xml轉(zhuǎn)化成數(shù)組
- libxml_disable_entity_loader(true);
- $xmlstring = simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA);
- // var_dump($xmlstring);
- $result['errNum'] = 0;
- $result['info'] = object_to_array($xmlstring);
- // var_dump($result);
- return $result;
- } else {
- $error = curl_errno($ch);
- curl_close($ch);
- // 錯誤的時候返回錯誤碼。
- $result['errNum'] = $error;
- return $result;
- }
- }
- function arrayToXml($arr) {
- $xml = "<root>";
- foreach ($arr as $key => $val) {
- if (is_array($val)) {
- $xml .= "<" . $key . ">" . arrayToXml($val) . "</" . $key . ">";
- } else {
- $xml .= "<" . $key . ">" . $val . "</" . $key . ">";
- }
- }
- $xml .= "</root>";
- return $xml;
- }
- function object_to_array($obj) {
- $obj = (array) $obj;
- foreach ($obj as $k => $v) {
- if (gettype($v) == 'resource') {
- return;
- }
- if (gettype($v) == 'object' || gettype($v) == 'array') {
- $obj[$k] = (array) object_to_array($v);
- }
- }
- return $obj;
- }
- function nonceStr() {
- $chars = "abcdefghijklmnopqrstuvwxyz0123456789";
- $str = "";
- $length = 32;
- for ($i = 0; $i < $length; $i++) {
- $str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
- } //Vevb.com
- // 隨機字符串
- return $str;
- }
- Home_index();
趕快添加到你的項目中去吧!
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