php版本微信js-sdk支付接口類例子

2024-05-04 21:50:38

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這個支付類是根據官方的文檔修改而來！主要實現生成JS API 、Native的package簽名包和Native響應的XML格式數據。注釋都標上了各方法的用意。由于package包簽名，略復雜，這個要自己多花時間去對應去看和log出文件來一一對比！當然只要你用上教程的類，設置好對應的參數就可以正確的生成package參數等

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',

    ));

    //設置package 必要的參數 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的簽名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簽名包參數：

{

    "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 響應的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%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鏈接：

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

無論哪一種方式，我們都要通過setParams來設置必要初始化參數和商品價格和狀態等！

WechatPay class:

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 (emptyempty(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個參與簽名的參數

 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 初始化類時用setParams方法定義必要的9個參數

 * 排序后格式化url query形式再md5SignUtil類簽名，再給合URL

 */

 protected function getPackageSign(){

 try {

 if (null == $this->_partnerkey || "" == $this->_partnerkey ) {

 throw new Exception("密鑰不能為空！" . " ");

 }

 $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());

 }

 }

 /*

 * 生成簽名方法

 * @params appid appkey package timestamp noncestr 等參數而native事例代碼中加上retcode reterrmsg兩個參數

 */

 public function getPaySign($signObj){

 foreach ($signObj as $k => $v){

 $signParams[strtolower($k)] = $v;

 }

 try {

 if ($this->_appkey == "") {

 throw new Exception("APPKEY為空！" . " ");

 }

 $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 簽名其中nonceStr是作為訂單號灌穿整個支付流程

 public function createJsApiPackage(){

 try {

 if($this->checkParams() == false) {

 throw new Exception("生成package參數缺失！" . " ");

 }

 $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());

 }

 }

 /*

 * 構建發貨狀態數組主要三個參數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;

 }

 /*

 * 生成掃描或者點擊原生URL后，響應的XML格式

 * @params $retcode $reterrmsg 定義該商品的狀態

 */

 public function createNativePackage($retcode = 0, $reterrmsg = "ok") {

 try {

 if ($this->checkParams() == false && $retcode == 0) { //如果是正常的返回，檢查財付通的參數

 throw new Exception("生成package參數缺失！" . " ");

 }

 $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 以訂單號為參數這是灌穿整個支付流程

 */

 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 !emptyempty($_SERVER["HTTP_CLIENT_IP"]):

 $ip = $_SERVER["HTTP_CLIENT_IP"];

 break;

 case !emptyempty($_SERVER["HTTP_X_FORWARDED_FOR"]):

 $ip = $_SERVER["HTTP_X_FORWARDED_FOR"];

 break;

 case !emptyempty($_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("財付通簽名key不能為空！" . " ");

 }

 if (null == $content) {

 throw new Exception("財付通簽名內容不能為空" . " ");

 }

 $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;

 }

 //訂單號，可根據實際自定義

 static public function createOrderNo() {

 $nonce = CommonUtil::createNoncestr(4);

 return strtoupper(date('ymds').substr(microtime(),2,4).$nonce);

 }

 //隨機字符串

 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;

 }

 /*

 * 輸出一級數組的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.">";

 } //Vevb.com

 $xml .= "</xml>";

 return $xml;

 }

}