???? APP WeChat ??? ?? ?? ??? ?????. ????? PHP? ?? APP WeChat ??? ?? ??? ?????. ???? ?? ???? ?? ?????.

1. PHP ??????? ?? ?? ??? ???? ??? ?? ?? ?? ID? ??? ?? ??? ??? ?????.

?? ??:

https://pay.weixin .qq.com/wiki/doc/api/app/app.php?chapter=9_1

??? ??? WeChat?? ???? ????? ???? ???. ???? ?? ?? ??? ?????. ??? ?? ?????!

WeChat?? ???? ????? xml ???? ????? ???(?: ???? ??).

public function ToXml($data=array())
 {
 if(!is_array($data) || count($data) <= 0)
 {
  return &#39;數(shù)組異常&#39;;
 }
 $xml = "<xml>";
 foreach ($data as $key=>$val)
 {
  if (is_numeric($val)){
  $xml.="<".$key.">".$val."</".$key.">";
  }else{
  $xml.="<".$key."><![CDATA[".$val."]]></".$key.">";
  }
 }
 $xml.="</xml>";
 return $xml;
 }

2. WeChat?? ???? ????? ??? ???? ?????. ???? ???? ?? ????! 3. ??? WeChat? ??? ?????. ? ??? ?? ? ?????! ?? ??

function rand_code(){
 $str = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';//62個字符
 $str = str_shuffle($str);
 $str = substr($str,0,32);
 return $str;
}

4. ????? WeChat? ???? ?? ??? ?????. WeChat?? ??? ???? ?? ??? ?? ????. . ??? ?? ?????? ???? ??? ?????. ?? ?? ????? WeChat? ?????. ??: https://pay.weixin.qq.com/wiki/doc/api/app/app.php?chapter =9_12&index=2

private function getSign($params) {
 ksort($params); //將參數(shù)數(shù)組按照參數(shù)名ASCII碼從小到大排序
 foreach ($params as $key => $item) {
  if (!empty($item)) {  //剔除參數(shù)值為空的參數(shù)
  $newArr[] = $key.'='.$item; // 整合新的參數(shù)數(shù)組
  }
 }
 $stringA = implode("&", $newArr);  //使用 & 符號連接參數(shù)
 $stringSignTemp = $stringA."&key="."************************"; //拼接key
 // key是在商戶平臺API安全里自己設(shè)置的
 $stringSignTemp = MD5($stringSignTemp); //將字符串進行MD5加密
 $sign = strtoupper($stringSignTemp); //將所有字符轉(zhuǎn)換為大寫
 return $sign;
 }

5. WeChat?? ??? ???? ?? ? ???? ??? ?????.

public function wx_pay() {
 $nonce_str = $this->rand_code(); //調(diào)用隨機字符串生成方法獲取隨機字符串
 $data['appid'] ='wxdbc5dc*******'; //appid
 $data['mch_id'] = '1493*****' ; //商戶號
 $data['body'] = "APP支付測試";
 $data['spbill_create_ip'] = $_SERVER['HTTP_HOST']; //ip地址
 $data['total_fee'] = 1;    //金額
 $data['out_trade_no'] = time().mt_rand(10000,99999); //商戶訂單號,不能重復(fù)
 $data['nonce_str'] = $nonce_str;   //隨機字符串
 $data['notify_url'] = 'http://xxx.xxx.com/wx_notify'; //回調(diào)地址,用戶接收支付后的通知,必須為能直接訪問的網(wǎng)址,不能跟參數(shù)
 $data['trade_type'] = 'APP'; //支付方式
 //將參與簽名的數(shù)據(jù)保存到數(shù)組 注意：以上幾個參數(shù)是追加到$data中的，$data中應(yīng)該同時包含開發(fā)文檔中要求必填的剔除sign以外的所有數(shù)據(jù)
 $data['sign'] = $this->getSign($data); //獲取簽名
 $xml = $this->ToXml($data);  //數(shù)組轉(zhuǎn)xml
 //curl 傳遞給微信方
 $url = "https://api.mch.weixin.qq.com/pay/unifiedorder";
 //header("Content-type:text/xml");
 $ch = curl_init();
 curl_setopt($ch,CURLOPT_URL, $url);
 if(stripos($url,"https://")!==FALSE){
  curl_setopt($ch, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1);
  curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
  curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
 } else {
  curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,TRUE);
  curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,2);//嚴(yán)格校驗
 }
 //設(shè)置header
 curl_setopt($ch, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1);
 curl_setopt($ch, CURLOPT_HEADER, FALSE);
 //要求結(jié)果為字符串且輸出到屏幕上
 curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
 //設(shè)置超時
 curl_setopt($ch, CURLOPT_TIMEOUT, 30);
 curl_setopt($ch, CURLOPT_POST, TRUE);
 //傳輸文件
 curl_setopt($ch, CURLOPT_POSTFIELDS, $xml);
 //運行curl
 $data = curl_exec($ch);
 //返回結(jié)果
 if($data){
  curl_close($ch);
  //返回成功,將xml數(shù)據(jù)轉(zhuǎn)換為數(shù)組.
  $re = $this->FromXml($data);
  if($re['return_code'] != 'SUCCESS'){
  json("201",'簽名失敗');
  }
  else{
  //接收微信返回的數(shù)據(jù),傳給APP!
  $arr =array(
   'prepayid' =>$re['prepay_id'],
   'appid' => 'wxdbc5dc*****',
   'partnerid' => '14937****',
   'package' => 'Sign=WXPay',
   'noncestr' => $nonce_str,
   'timestamp' =>time(),
  );
  //第二次生成簽名
  $sign = $this->getSign($arr);
  $arr['sign'] = $sign;
  json('200','簽名成功',$arr);
  }
 } else {
  $error = curl_errno($ch);
  curl_close($ch);
  json('201',"curl出錯，錯誤碼:$error");
 }
 }

2. APP ??? ???? ??? ?? ??? ?????.

?? ????? ?? ??? ??? WeChat ???? ?????: https://pay.weixin.qq.com/wiki/doc/api/app/app.php?chapter=9_7&index=3

public function FromXml($xml)
 {
 if(!$xml){
  echo "xml數(shù)據(jù)異常！";
 }
 //將XML轉(zhuǎn)為array
 //禁止引用外部xml實體
 libxml_disable_entity_loader(true);
 $data = json_decode(json_encode(simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA)), true);
 return $data;
 }

??? ?? ? ??? ????? ???????! ??? ??? ??????!

? ??? PHP? APP WeChat ??? ???? ???? ?????. ???? ?? ??? ?? ?? ?????? ?? ????.

?? ?? :

?? ?? ?? ?? ??

PHP ?? ?? ?? ?? ?? ?? ??

?? ?? ?? ??? ?? Thinkphp ?? ??

? ??? PHP? ?? APP WeChat ?? ?? ?? ??? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!