虽然本文说是通过laravel实现微信支付,其实也可以封装成通用函数,原理都一样只是本文中使用了laravel中的部分语法,同时封装了支付中需要用到的一些功能(获取openid,生成签名)等,具体代码如下:
//微信支付
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//获取openid public function getOpenid(Request $request) { $code = $request->input('code'); if(empty($code)) { return response()->json(['status'=>1,'msg'=>'code为空']); } $url='https://api.weixin.qq.com/sns/jscode2session?appid='.env('APPID').'&secret='.env('SECRET').'&js_code='.$code.'&grant_type=authorization_code'; $res = file_get_contents($url); return response()->json(['status'=>200,'msg'=>$res]); } //获取支付需要的sign public function getPaySign(Request $request) { $ip = $_SERVER["REMOTE_ADDR"]; $openid = $request->input('openid'); $price = $request->input('price'); $aid = $request->input('aid'); $member = MemberModel::where(['openid'=>$openid])->first(); if(empty($openid) || empty($member) || empty($ip)) { return response()->json(['status'=>500,'msg'=>'参数错误']); } if(empty($aid) || $aid == 0) { if(empty($price)) { return response()->json(['status'=>500,'msg'=>'参数错误']); } $type = 1; $aid = null; } else { $res=ActivityModel::select('target')->where(['id'=>$aid,'status'=>1])->first(); if(empty($res)) { return response()->json(['status'=>500,'msg'=>'活动结束']); } $price = $res->target; $type = 2; } $order_num = 'CMT'.time().$member->id; $order=RechargeOrderModel::create(['mid'=>$member->id,'price'=>$price,'order_number'=>$order_num,'type'=>$type,'aid'=>$aid]); if(empty($order)) { return response()->json(['status'=>200,'msg'=>'订单生成错误']); } //组装参数 $notify_url = 'http://'.$_SERVER['HTTP_HOST'].'/home/payNotify'; $order_num = $order->order_number; $data = [ //'appid' => 'wxf0d27e41678c566c', 'appid' => env('APPID'), 'body' => '美容消费', //'mch_id' => '1484855592', 'mch_id' => env('MCHID'), 'nonce_str' => md5(date('YmdHis') . time() . rand(1000, 9999)), 'notify_url' => $notify_url, 'openid' => $openid, 'out_trade_no' => $order_num, 'spbill_create_ip' => $ip, 'total_fee' => $price*100, 'trade_type' => 'JSAPI' ]; //形成sign $string = $this->getSign($data).'key='.env('MCHKEY'); $stringTemp = MD5($string); $sign = strtoupper($stringTemp); //准备请求prepay接口 $data['sign'] = $sign; $str_xml = "<xml>"; foreach ($data as $key => $val) { $str_xml .= "<" . $key . ">" . $val . "</" . $key . ">"; } $str_xml .= "</xml>"; $prepay_url = 'https://api.mch.weixin.qq.com/pay/unifiedorder'; //请求接口并且解析xml $result = $this->xmlDecode($this->httpCurl($prepay_url,$str_xml)); if ($result['return_code'] !== 'SUCCESS' || $result['result_code'] !== 'SUCCESS') { return response()->json(['status'=>200,'msg'=>$result]); } //此处参数必须和前端调微信js参数一致，包括大小写以及数据类型 $params = [ 'appId' => $data['appid'], 'nonceStr' => $data['nonce_str'], 'package' => 'prepay_id='.$result['prepay_id'], 'signType' => 'MD5', 'timeStamp' => (string)time() ]; //拼接前端需要参数 $stringxml = $this->getSign($params).'key='.env('MCHKEY'); $stringxml = MD5($stringxml); $sign2 = strtoupper($stringxml); $pay_result['paySign'] = $sign2; $pay_result['timeStamp'] = $params['timeStamp']; $pay_result['nonceStr'] = $params['nonceStr']; $pay_result['package'] = $params['package']; $pay_result['signType'] = 'MD5'; return response()->json(['status'=>200,'msg'=>$pay_result]); } protected function httpCurl($url,$data) { $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_HEADER, 0); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10); curl_setopt($ch, CURLOPT_POST, 1); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); curl_setopt($ch, CURLOPT_POSTFIELDS, $data); curl_setopt( $ch, CURLOPT_HTTPHEADER, array( 'Content-Type: text' ) ); $data = curl_exec($ch); curl_close($ch); return ($data); } protected function xmlDecode($xml) { $message = (array)simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA); return $message; } protected function getSign($arr) { ksort($arr); $string = ''; foreach ($arr as $k => $v) { if ($k != "sign" && $v != "" && !is_array($v)) { $string .= $k . "=" . $v . "&"; } } return $string; } //支付回调地址 public function payNotify() { $postXml = $GLOBALS["HTTP_RAW_POST_DATA"]; //接收微信参数 if (empty($postXml)) { return false; } //将xml格式转换成数组 $attr = $this->xmlDecode($postXml); $total_fee = $attr['total_fee']*0.01; $open_id = $attr['openid']; $out_trade_no = $attr['out_trade_no']; if($attr['result_code'] = 'SUCCESS' || $attr['return_code'] = 'SUCCESS') { die('success'); } else { die('fail'); } } } } |
注:需要注意大小写的问题,还有微信配置问题,有其他疑问可以在下面留言,博主看见后将给与一定帮助。
