php版微信js-sdk支付接口类用法示例

　　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

　　 <?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()); $pay->setParams(WechatPay::NOTIFY_URL, 的签名json print_r($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_charset=UTF-8&notify_url=http%3A%2F%2F

　　Native 响应的XML格式：

　　 <xml> <AppId><![CDATA[wx9998ff5f4dede5b7]]></AppId> <Package> <![CDATA[bank_type=WX&body=test&fee_type=1&input_charset=UTF-8&notify_url=http%3A%2F%2F

　　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:

　　 <?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; } }

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