php 微信支付app接口,iOS和android的，服务端是php写的

<?php class TestpayAction{ /* 配置参数 */ var $config = array( 'appid' => "wx88***********", /*微信开放平台上的应用id*/ 'mch_id' => "13*****882", /*微信申请成功之后邮件中的商户id*/ 'api_key' => "e10adc3949ba59abbe56e057f20f8833", /*在微信商户平台上自己设定的api密钥 32位*/ 'notify_url' => 'http://www.*********.com/pay_wx/callback.php' /*自定义的回调程序地址id*/ ); //获取预支付订单 public function wxpay($osn,$total_fee){ $url = "https://api.mch.weixin.qq.com/pay/unifiedorder"; $notify_url = $this->config["notify_url"]; $out_trade_no = $osn; $total_fee = $total_fee*100; $onoce_str = $this->getRandChar(32); $data["appid"] = $this->config["appid"]; $data["body"] = "支付订单"; $data["mch_id"] = $this->config['mch_id']; $data["nonce_str"] = $onoce_str; $data["notify_url"] = $notify_url; $data["out_trade_no"] = $out_trade_no; $data["spbill_create_ip"] = $this->get_client_ip(); $data["total_fee"] = $total_fee; $data["trade_type"] = "APP"; $s = $this->getSign($data, false); $data["sign"] = $s; $xml = $this->arrayToXml($data); $response = $this->postXmlCurl($xml, $url); //将微信返回的结果xml转成数组 $res = $this->xmlstr_to_array($response); $sign2 = $this->getOrder($res['prepay_id']); echo json_encode($sign2); die(); } //回调数据 public function callback(){ $postObj = $this->xmlstr_to_array($GLOBALS["HTTP_RAW_POST_DATA"]); if(($postObj['total_fee'])&&($postObj['result_code']=='SUCCESS')){ $osn = $postObj['out_trade_no'];//订单号 $total_fee = $postObj['total_fee']/100;//金额 $time_end = $postObj['time_end'];//支付时间 $trade_no = $postObj['transaction_id'];//微信支付单号 //查询订单信息 //添加交易记录并更新工单 //推送通知 //记录订单信息 //生成日志 } echo 'success'; exit; }else{ echo 'error'; exit; } } /* 生成签名 */ function getSign($Obj) { foreach ($Obj as $k => $v) { $Parameters[strtolower($k)] = $v; } //签名步骤一：按字典序排序参数 ksort($Parameters); $String = $this->formatBizQueryParaMap($Parameters, false); //echo "【string】 =".$String."</br>"; //签名步骤二：在string后加入KEY $String = $String."&key=".$this->config['api_key']; //echo "<textarea style='width: 50%; height: 150px;'>$String</textarea> <br />"; //签名步骤三：MD5加密 $result_ = strtoupper(md5($String)); return $result_; } //执行第二次签名，才能返回给客户端使用 public function getOrder($prepayId){ $data["appid"] = $this->config["appid"]; $data["noncestr"] = $this->getRandChar(32); $data["package"] = "Sign=WXPay"; $data["partnerid"] = $this->config['mch_id']; $data["prepayid"] = $prepayId; $data["timestamp"] = time(); $s = $this->getSign($data, false); $data["sign"] = $s; return $data; } /* * 获取回调接口返回信息 */ public function get_xml_obj(){ $postStr = $GLOBALS["HTTP_RAW_POST_DATA"]; $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA); return $postObj; } //对象转数组 public function object_to_array($array) { if(is_object($array)) { $array = (array)$array; } if(is_array($array)) { foreach($array as $key=>$value) { $array[$key] = $this->object_to_array($value); } } return $array; } //获取指定长度的随机字符串 function getRandChar($length){ $str = null; $strPol = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz"; $max = strlen($strPol)-1; for($i=0;$i<$length;$i++){ $str.=$strPol[rand(0,$max)];//rand($min,$max)生成介于min和max两个数之间的一个随机整数 } return $str; } /* 获取当前服务器的IP */ function get_client_ip() { if ($_SERVER['REMOTE_ADDR']) { $cip = $_SERVER['REMOTE_ADDR']; } elseif (getenv("REMOTE_ADDR")) { $cip = getenv("REMOTE_ADDR"); } elseif (getenv("HTTP_CLIENT_IP")) { $cip = getenv("HTTP_CLIENT_IP"); } else { $cip = "unknown"; } return $cip; } /** xml转成数组 */ function xmlstr_to_array($xmlstr) { $doc = new DOMDocument(); $doc->loadXML($xmlstr); return $this->domnode_to_array($doc->documentElement); } //数组转xml 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 $xml; } //将数组转成uri字符串 function formatBizQueryParaMap($paraMap, $urlencode) { $buff = ""; ksort($paraMap); foreach ($paraMap as $k => $v) { if($urlencode) { $v = urlencode($v); } $buff .= strtolower($k) . "=" . $v . "&"; } $reqPar; if (strlen($buff) > 0) { $reqPar = substr($buff, 0, strlen($buff)-1); } return $reqPar; } //post https请求，CURLOPT_POSTFIELDS xml格式 function postXmlCurl($xml,$url,$second=30) { //初始化curl $ch = curl_init(); //超时时间 curl_setopt($ch,CURLOPT_TIMEOUT,$second); //这里设置代理，如果有的话 //curl_setopt($ch,CURLOPT_PROXY, '8.8.8.8'); //curl_setopt($ch,CURLOPT_PROXYPORT, 8080); curl_setopt($ch,CURLOPT_URL, $url); curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,FALSE); curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,FALSE); //设置header curl_setopt($ch, CURLOPT_HEADER, FALSE); //要求结果为字符串且输出到屏幕上 curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE); //post提交方式 curl_setopt($ch, CURLOPT_POST, TRUE); curl_setopt($ch, CURLOPT_POSTFIELDS, $xml); //运行curl $data = curl_exec($ch); //返回结果 if($data) { curl_close($ch); return $data; } else { $error = curl_errno($ch); echo "curl出错，错误码:$error"."<br>"; echo "<a href='http://curl.haxx.se/libcurl/c/libcurl-errors.html'>错误原因查询</a></br>"; curl_close($ch); return false; } } function domnode_to_array($node) { $output = array(); switch ($node->nodeType) { case XML_CDATA_SECTION_NODE: case XML_TEXT_NODE: $output = trim($node->textContent); break; case XML_ELEMENT_NODE: for ($i=0, $m=$node->childNodes->length; $i<$m; $i++) { $child = $node->childNodes->item($i); $v = $this->domnode_to_array($child); if(isset($child->tagName)) { $t = $child->tagName; if(!isset($output[$t])) { $output[$t] = array(); } $output[$t][] = $v; } elseif($v) { $output = (string)