PHP实现微信支付(jsapi支付)和退款(无需集成支付SDK)流程教程详解

 /** * 微信支付请求接口(POST) * @param string $openid openid * @param string $body 商品简单描述 * @param string $order_sn 订单编号 * @param string $total_fee 金额 * @return json的数据 */ public function wxpay($openid,$total_fee,$body,$order_sn){ $config = $this->config; //统一下单参数构造 $unifiedorder = array( 'appid' => $config['appid'], 'mch_id' => $config['mch_id'], 'nonce_str' => self::getNonceStr(), 'body' => $body, 'out_trade_no' => $order_sn, 'total_fee' => $total_fee * 100, 'spbill_create_ip' => self::getip(), 'notify_url' => 'http://'.$_SERVER['HTTP_HOST'].'/notify.php', 'trade_type' => 'JSAPI', 'openid' => $openid ); $unifiedorder['sign'] = self::makeSign($unifiedorder); //return $unifiedorder; //请求数据,统一下单 $xmldata = self::array2xml($unifiedorder); $url = 'https://api.mch.weixin.qq.com/pay/unifiedorder'; $res = self::curl_post_ssl($url, $xmldata); if(!$res){ return array('status'=>0, 'msg'=>"Can't connect the server" ); } // 这句file_put_contents是用来查看服务器返回的结果 测试完可以删除了 //file_put_contents('./log.txt',$res,FILE_APPEND); $content = self::xml2array($res); if(strval($content['result_code']) == 'FAIL'){ return array('status'=>0, 'msg'=>strval($content['err_code']).':'.strval($content['err_code_des'])); } if(strval($content['return_code']) == 'FAIL'){ return array('status'=>0, 'msg'=>strval($content['return_msg'])); } $time = time(); settype($time, "string"); //jsapi支付界面,时间戳必须为字符串格式 $resdata = array( 'appId' => strval($content['appid']), 'nonceStr' => strval($content['nonce_str']), 'package' => 'prepay_id='.strval($content['prepay_id']), 'signType' => 'MD5', 'timeStamp' => $time ); $resdata['paySign'] = self::makeSign($resdata); return json_encode($resdata); } /** * 微信退款(POST) * @param string(28) $transaction_id 在微信支付的时候,微信服务器生成的订单流水号,在支付通知中有返回 * @param string $out_refund_no 商品简单描述 * @param string $total_fee 微信支付的时候支付的总金额(单位:分) * @param string $refund_fee 此次要退款金额(单位:分) * @return string  xml格式的数据 */ public function refund($transaction_id,$out_refund_no,$total_fee,$refund_fee){ $config = $this->config; //退款参数 $refundorder = array( 'appid' => $config['appid'], 'mch_id' => $config['mch_id'], 'nonce_str' => self::getNonceStr(), 'transaction_id'=> $transaction_id, 'out_refund_no' => $out_refund_no, 'total_fee' => $total_fee * 100, 'refund_fee' => $refund_fee * 100 ); $refundorder['sign'] = self::makeSign($refundorder); //请求数据,进行退款 $xmldata = self::array2xml($refundorder); $url = 'https://api.mch.weixin.qq.com/secapi/pay/refund'; $res = self::curl_post_ssl($url, $xmldata); if(!$res){ return array('status'=>0, 'msg'=>"Can't connect the server" ); } // 这句file_put_contents是用来查看服务器返回的结果 测试完可以删除了 //file_put_contents('./log3.txt',$res,FILE_APPEND); $content = self::xml2array($res); if(strval($content['result_code']) == 'FAIL'){ return array('status'=>0, 'msg'=>strval($content['err_code']).':'.strval($content['err_code_des'])); } if(strval($content['return_code']) == 'FAIL'){ return array('status'=>0, 'msg'=>strval($content['return_msg'])); } re<p style="color:transparent">来源gao!daima.com搞$代!码网</p>turn $content; } 

  'wx123456789876', 'mch_id' => '123456789', 'pay_apikey' => '123456789876123456789876123456789876' ); $wxpay = new WxPay($config); $result = $wxpay->paytest(); ?>   <title>江南极客支付</title> <br /><font color="#9ACD32"><b>该笔订单支付金额为<span style="color:#f00;font-size:50px">1分</span>钱</b></font><br /><br /><font color="#9ACD32"><b><span style="color:#f00;font-size:50px;margin-left:40%">1分</span>钱也是爱</b></font><br /><br /><div align="center"> <button style="width:210px;height:50px;background-color:#FE6714;border:0px #FE6714 solid;cursor: pointer;color:white;font-size:16px" type="button">果断买买买^_^</button></div>