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php版微信js-sdk支付接口类用法示例

转载 作者：qq735679552 更新时间：2022-09-27 22:32:09 25 4
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本文实例讲述了php版微信js-sdk支付接口类用法。分享给大家供大家参考，具体如下:

这个支付类是根据官方的文档修改而来！主要实现生成JS API 、Native的package签名包和Native响应的XML格式数据。注释都标上了各方法的用意。由于package包签名，略复杂，这个要自己多花时间去对应去看和log出文件来一一对比！当然只要你用上教程的类，设置好对应的参数就可以正确的生成package参数等 。

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<?php
if (isset( $argc ) && $argc >= 1 && $argv [0] == __FILE__ ) {
   //初始化pay的必要信息
   $pay = new WechatPay( array (
     WechatPay::APPID => 'wx99dabzpiuq83985b8' ,
     WechatPay::APPSERCER => 'ac12e7e4abaer63hkoa0cc36a9663fa' ,
     WechatPay::PARTNERKEY => 'bae4sfa3562rsfaq23s2045' ,
     WechatPay::PARTNERID => '1268969802' ,
     WechatPay::PAYSIGNKEY => '9Fqsxb3PK4IVOCEc4yCquy5zecS9LeeMjF2Nn4B4YKoOxPwaQdFwMezKT8oNlBYaWcuT' ,
     WechatPay::SIGNTYPE => 'sha1' ,
   ));
   //设置package 必要的参数 jsapi native都通用
   $pay ->setParams(WechatPay::BANK_TYPE, "WX" );
   $pay ->setParams(WechatPay::BODY, "test" );
   $pay ->setParams(WechatPay::PARTNER, $pay ->partnerid);
   $pay ->setParams(WechatPay::OUT_TRADE_NO, commonUtil::createNoncestr());
   $pay ->setParams(WechatPay::TOTAL_FEE, "1" );
   $pay ->setParams(WechatPay::FEE_TYPE, "1" );
   $pay ->setParams(WechatPay::TIMESTAMP, time());
   $pay ->setParams(WechatPay::NOTIFY_URL, "http://www.demo.com/notify" );
   $pay ->setParams(WechatPay::SPBILL_CREATE_IP, "127.0.0.1" );
   $pay ->setParams(WechatPay::INPUT_CHARSET, "UTF-8" );
   //JSAPI的签名json
   print_r( $pay ->createJsApiPackage());
   //生成native XML
   print_r( $pay ->createNativePackage());
   //生成native URL
   print_r( $pay ->createNativeUrl( "9701" ));
}

JS API生成的package签名包参数:

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{
   "appId" : "wx9998ff5f4dede5b7" ,
   "package" : "bank_type=WX&body=test&fee_type=1&input_charset=UTF-8&notify_url=http%3A%2F%2Fwww.demo.com%2Fnotify&out_trade_no=Vf5qsSwtu0hc2loH&partner=wx9998ff5f4dede5b7&spbill_create_ip=127.0.0.1&timestamp=1409295711&total_fee=1&sign=FEE0167BD0D89A88BF6850590EA889B6" ,
   "timeStamp" :1409295711,
   "nonceStr" : "Vf5qsSwtu0hc2loH" ,
   "paySign" : "f816264c750923863c370a1739640244b0c2d39c" ,
   "signType" : "sha1"
}

Native 响应的XML格式:

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< xml >
   < AppId > <![CDATA[wx9998ff5f4dede5b7]]> </ AppId >
   < Package >
     <![CDATA[bank_type=WX&body=test&fee_type=1&input_charset=UTF-8&notify_url=http%3A%2F%2Fwww.demo.com%2Fnotify&out_trade_no=GDl3what4sALDEAd&partner=wx9998ff5f4dede5b7&spbill_create_ip=127.0.0.1&timestamp=1409296124&total_fee=1&sign=BF949B85570644B939B369FD44B0C4A9]]>
   </ Package >
   < TimeStamp >1409296124</ TimeStamp >
   < NonceStr > <![CDATA[GDl3what4sALDEAd]]> </ NonceStr >
   < RetCode >0</ RetCode >
   < RetErrMsg > <![CDATA[ok]]> </ RetErrMsg >
   < AppSignature > <![CDATA[ca4a2467b817a62c38a9801fcf451f51692027bf]]> </ AppSignature >
   < SignMethod > <![CDATA[sha1]]> </ SignMethod >
</ xml >

Native的URL链接:

weixin://wxpay/bizpayurl?appid=wx9998ff5f4dede5b7&noncestr=VY7cVA6mtVrc1BVq&productid=9701&sign=43508b65b50e1d7e1089be66d55a709469155d73&timestamp=1409296323 。

无论哪一种方式，我们都要通过setParams来设置必要初始化参数和商品价格和状态等！ 。

WechatPay class

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<?php
class WechatPay {
   const
     BANK_TYPE = 'bank_type' ,
     BODY = 'body' ,
     PARTNER = 'partner' ,
     OUT_TRADE_NO = 'out_trade_no' ,
     TIMESTAMP = 'timestamp' ,
     TOTAL_FEE = 'total_fee' ,
     FEE_TYPE = 'fee_type' ,
     NOTIFY_URL = 'notify_url' ,
     SPBILL_CREATE_IP = 'spbill_create_ip' ,
     INPUT_CHARSET = 'input_charset' ,
     APPID = 'appid' ,
     APPSERCER = 'appsercer' ,
     PAYSIGNKEY = 'appkey' ,
     PARTNERID = 'partnerid' ,
     PARTNERKEY = 'partnerkey' ,
     SIGNTYPE = 'signtype' ;
   public
     $params = array (), $partnerid = '' ;
   static protected
     $_instance ;
   protected
     $_appid , $_appkey , $_signtype , $_partnerkey , $_appsercer ;
   static public function getInstance( array $options = array ()) {
     if ( empty (self:: $_instance )) {
       self:: $_instance = new self ( $options );
     }
     return self:: $_instance ;
   }
   public function __construct( array $options = array ()){
     $this ->_appid = $options [self::APPID];
     $this ->_appkey = $options [self::PAYSIGNKEY];
     $this ->_signtype = $options [self::SIGNTYPE];
     $this ->_partnerkey = $options [self::PARTNERKEY];
     $this ->_appsercer = $options [self::APPSERCER];
     $this ->partnerid = $options [self::APPID];
   }
   public function setParams( $param , $paramValue ) {
     $this ->params[CommonUtil::trimString( $param )] = CommonUtil::trimString( $paramValue );
   }
   public function getParams( $param ) {
     return $this ->params[ $param ];
   }
   protected function createNoncestr( $length = 16 ) {
     $chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789" ;
     $str = "" ;
     for ( $i = 0; $i < $length ; $i ++ ) {
       $str .= substr ( $chars , mt_rand(0, strlen ( $chars )-1), 1);
     }
     return $str ;
   }
   public function checkParams(){
     //必要的9个参与签名的参数
     if ( $this ->params[self::BANK_TYPE] == null || $this ->params[self::BODY] == null || $this ->params[self::PARTNER] == null ||
       $this ->params[self::OUT_TRADE_NO] == null || $this ->params[self::TOTAL_FEE] == null || $this ->params[self::FEE_TYPE] == null ||
       $this ->params[self::NOTIFY_URL] == null || $this ->params[self::SPBILL_CREATE_IP] == null || $this ->params[self::INPUT_CHARSET] == null
     ) {
       return false;
     }
     return true;
   }
   /*
    * 生成package包
    * @params 初始化类时用setParams方法定义必要的9个参数
    * 排序后格式化url query形式 再md5SignUtil类签名，再给合URL
    */
   protected function getPackageSign(){
     try {
       if (null == $this ->_partnerkey || "" == $this ->_partnerkey ) {
         throw new Exception( "密钥不能为空！" . "<br>" );
       }
       $commonUtil = new CommonUtil();
       ksort( $this ->params);
       $unSignParaString = $commonUtil ->formatUrlQuery( $this ->params, false);
       $paraString = $commonUtil ->formatUrlQuery( $this ->params, true);
       $md5SignUtil = new MD5SignUtil();
       return $paraString . "&sign=" . $md5SignUtil ->sign( $unSignParaString ,commonUtil::trimString( $this ->_partnerkey));
     } catch (Exception $e ) {
       echo ( $e ->getMessage());
     }
   }
   /*
    * 生成签名方法
    * @params appid appkey package timestamp noncestr 等参数而native事例代码中加上retcode reterrmsg两个参数
    */
   public function getPaySign( $signObj ){
     foreach ( $signObj as $k => $v ){
       $signParams [ strtolower ( $k )] = $v ;
     }
     try {
       if ( $this ->_appkey == "" ) {
         throw new Exception( "APPKEY为空！" . "<br>" );
       }
       $signParams [ "appkey" ] = $this ->_appkey;
       ksort( $signParams , SORT_STRING);
       $commonUtil = new CommonUtil();
       $signString = $commonUtil ->formatPayUrlQuery( $signParams , false);
       return sha1( $signString );
     } catch (Exception $e ) {
       echo ( $e ->getMessage());
     }
   }
   //JS API 签名 其中nonceStr是作为订单号 灌穿整个支付流程
   public function createJsApiPackage(){
     try {
       if ( $this ->checkParams() == false) {
         throw new Exception( "生成package参数缺失！" . "<br>" );
       }
       $payObj [ "appId" ] = $this ->_appid;
       $payObj [ "package" ] = $this ->getPackageSign();
       $payObj [ "timeStamp" ] = $this ->getParams(self::TIMESTAMP);
       $payObj [ "nonceStr" ] = $this ->getParams(self::OUT_TRADE_NO);
       $payObj [ "paySign" ] = $this ->getPaySign( $payObj );
       $payObj [ "signType" ] = $this ->_signtype;
       return json_encode( $payObj );
     } catch (Exception $e ) {
       die ( $e ->getMessage());
     }
   }
   /*
    * 构建发货状态数组 主要三个参数openid transid orderid
    */
   public function createDeliverPost(Array $params ) {
     $deliver = array ();
     $deliver [ 'appid' ] = $this ->_appid;
     $deliver [ 'openid' ] = $params [ 'openid' ];
     $deliver [ 'transid' ] = $params [ 'transid' ];
     $deliver [ 'out_trade_no' ] = $params [ 'out_trade_no' ];
     $deliver [ 'deliver_timestamp' ] = current_time( 'timestamp' );
     $deliver [ 'deliver_status' ] = 1;
     $deliver [ 'deliver_msg' ] = 'OK' ;
     $deliver [ 'app_signature' ] = $this ->getPaySign( $deliver );
     $deliver [ 'sign_method' ] = 'sha1' ;
     return $deliver ;
   }
   /*
    * 生成扫描或者点击原生URL后，响应的XML格式
    * @params $retcode $reterrmsg 定义该商品的状态
    */
   public function createNativePackage( $retcode = 0, $reterrmsg = "ok" ) {
     try {
       if ( $this ->checkParams() == false && $retcode == 0) {  //如果是正常的返回， 检查财付通的参数
         throw new Exception( "生成package参数缺失！" . "<br>" );
       }
       $nativeObj [ "AppId" ] = $this ->_appid;
       $nativeObj [ "Package" ] = $this ->getPackageSign();
       $nativeObj [ "TimeStamp" ] = $this ->getParams(self::TIMESTAMP);
       $nativeObj [ "NonceStr" ] = $this ->getParams(self::OUT_TRADE_NO);
       $nativeObj [ "RetCode" ] = $retcode ;
       $nativeObj [ "RetErrMsg" ] = $reterrmsg ;
       $nativeObj [ "AppSignature" ] = $this ->getPaySign( $nativeObj );
       $nativeObj [ "SignMethod" ] = $this ->_signtype;
       $commonUtil = new CommonUtil();
       $xml = $commonUtil ->arrayToXml( $nativeObj );
       exit ( $xml );
     } catch (Exception $e ) {
       echo ( $e ->getMessage());
     }
   }
   /*
    * 生成原生URL 以订单号为参数 这是灌穿整个支付流程
    */
   public function createNativeUrl( $productid ) {
     $commonUtil = new CommonUtil();
     $nativeObj [ "appid" ] = $this ->_appid;
     $nativeObj [ "productid" ] = urlencode( $productid );
     $nativeObj [ "timestamp" ] = time();
     $nativeObj [ "nonceStr" ] = commonUtil::createNoncestr();
     $nativeObj [ "sign" ] = $this ->getPaySign( $nativeObj );
     $nativeString = $commonUtil ->formatPayUrlQuery( $nativeObj , false);
     return "weixin://wxpay/bizpayurl?" . $nativeString ;
   }
   /*
    * 取IP地址
    */
   public function getIp(){
     switch (true) {
       case ! empty ( $_SERVER [ "HTTP_CLIENT_IP" ]):
         $ip = $_SERVER [ "HTTP_CLIENT_IP" ];
         break ;
       case ! empty ( $_SERVER [ "HTTP_X_FORWARDED_FOR" ]):
         $ip = $_SERVER [ "HTTP_X_FORWARDED_FOR" ];
         break ;
       case ! empty ( $_SERVER [ "REMOTE_ADDR" ]):
         $ip = $_SERVER [ "REMOTE_ADDR" ];
         break ;
       default :
         $ip = "127.0.0.1" ;
     }
     return $ip ;
   }
}
class MD5SignUtil {
   public function sign( $content , $key ) {
     try {
       if (null == $key ) {
         throw new Exception( "财付通签名key不能为空！" . "<br>" );
       }
       if (null == $content ) {
         throw new Exception( "财付通签名内容不能为空" . "<br>" );
       }
       $signStr = $content . "&key=" . $key ;
       return strtoupper (md5( $signStr ));
     } catch (Exception $e ) {
       echo ( $e ->getMessage());
     }
   }
   public static function verifySignature( $content , $sign , $md5Key ) {
     $signStr = $content . "&key=" . $md5Key ;
     $calculateSign = strtolower (md5( $signStr ));
     $tenpaySign = strtolower ( $sign );
     return $calculateSign == $tenpaySign ;
   }
}
class CommonUtil {
   public function genAllUrl( $toURL , $paras ) {
     $allUrl = null;
     if (null == $toURL ) {
       die ( "toURL is null" );
     }
     if ( strripos ( $toURL , "?" ) == "" ) {
       $allUrl = $toURL . "?" . $paras ;
     } else {
       $allUrl = $toURL . "&" . $paras ;
     }
     return $allUrl ;
   }
   //订单号，可根据实际自定义
   static public function createOrderNo() {
     $nonce = CommonUtil::createNoncestr(4);
     return strtoupper ( date ( 'ymds' ). substr (microtime(),2,4). $nonce );
   }
   //随机字符串
   static public function createNoncestr( $length = 16 ) {
     $chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789" ;
     $str = "" ;
     for ( $i = 0; $i < $length ; $i ++ ) {
       $str .= substr ( $chars , mt_rand(0, strlen ( $chars )-1), 1);
     }
     return $str ;
   }
   public function splitParaStr( $src , $token ) {
     $resMap = array ();
     $items = explode ( $token , $src );
     foreach ( $items as $item ){
       $paraAndValue = explode ( "=" , $item );
       if ( $paraAndValue != "" ) {
         $resMap [ $paraAndValue [0]] = $paraAndValue [1];
       }
     }
     return $resMap ;
   }
   static function trimString( $value ) {
     $ret = null;
     if (null != $value ) {
       $ret = $value ;
       if ( strlen ( $ret ) == 0) {
         $ret = null;
       }
     }
     return $ret ;
   }
   public function formatUrlQuery( $paraMap , $urlencode ) {
     $buff = "" ;
     ksort( $paraMap , SORT_STRING);
     foreach ( $paraMap as $k => $v ) {
       if (null != $v && "null" != $v && "sign" != $k ) {
         if ( $urlencode ) {
           $v = urlencode( $v );
         }
         $buff .= $k . "=" . $v . "&" ;
       }
     }
     $reqPar = '' ;
     if ( strlen ( $buff ) > 0) {
       $reqPar = substr ( $buff , 0, strlen ( $buff )-1);
     }
     return $reqPar ;
   }
   public function formatPayUrlQuery( $paraMap , $urlencode ) {
     $buff = "" ;
     ksort( $paraMap , SORT_STRING);
     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 ;
   }
   /*
    * 输出一级数组的xml格式
    */
   public function arrayToXml( $arr ) {
     $xml = "<xml>" ;
     foreach ( $arr as $key => $val ) {
       if ( $key == 'TimeStamp' || $key == 'RetCode' ) {
         $xml .= "<" . $key . ">" . $val . "</" . $key . ">" ;
       } else
         $xml .= "<" . $key . "><![CDATA[" . $val . "]]></" . $key . ">" ;
     }
     $xml .= "</xml>" ;
     return $xml ;
   }
}

希望本文所述对大家PHP程序设计有所帮助.

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