php版微信js-sdk支付接口类用法示例

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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

= 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：

{  "appId":"wx9998ff5f4dede5b7",  "package":"bank_type=WX&body=test&fee_type=1&input_¬ify_url=http%3A%2F%2Fwww.demo.com%2Fnotify&out_trade_no=Vf5qsSwtu0hc2loH&partner=wx9998ff5f4dede5b7&spbill_create_ip=127.0.0.1×tamp=1409295711&total_fee=1&sign=FEE0167BD0D89A88BF6850590EA889B6",  "timeStamp":1409295711,  "nonceStr":"Vf5qsSwtu0hc2loH",  "paySign":"f816264c750923863c370a1739640244b0c2d39c",  "signType":"sha1"}

Native 响应的XML格式：

            1409296124    0      

Native的URL链接：

weixin://wxpay/bizpayurl?appid=wx9998ff5f4dede5b7&noncestr=VY7cVA6mtVrc1BVq&productid=9701&sign=43508b65b50e1d7e1089be66d55a709469155d73×tamp=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:

_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！" . "
");      }      $commonUtil = new CommonUtil();      ksort($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！" . "
");      }      $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！" . "
");      }      $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！" . "
");      }      $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！" . "
");      }      if (null == $content) {        throw new Exception("财付通签名内容不能为空" . "
");      }      $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) {    $xml = "";    foreach ($arr as $key=>$val) {      if ($key == 'TimeStamp' || $key == 'RetCode') {        $xml.="<".$key.">".$val."";      } else        $xml.="<".$key.">";    }    $xml .= "";    return $xml;  }}

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