本文实例讲述了php版银联支付接口开发的方法。分享给大家供大家参考，具体如下：

支付接口现在有第三方的支付接口也有银行的支付接口。这里就来介绍php版本银联支付接口开发的方法。

银联支付，首先要注意二重要的部分：

PHP运行环境是5.4.18以上

开了扩展openssl

开发手册上面的列子只做参考，因为基本都是错的。你可以试着去官网下一个demo。。。注意现在银联开发，没有测试密钥提供，只能在正式环境开发

下面是我用ThinkPHP编写的一个支付类

/**

* 银联支付 v0.1

* @auther:Summer;

* @date:20151202

* **/

class NetPayAction extends BaseAction{

//在类初始化方法中，引入相关类库

public function _initialize() {

header("Content-type:text/html;charset=utf-8");

vendor("Netpay.util.common","",".php"); //导入加密核心文件夹

vendor("Netpay.util.SecssUtil","",".class.php"); //导入加密核心文件夹

vendor("Netpay.util.Settings_INI","",".php"); //导入加密核心文件夹

vendor("Netpay.util.Settings","",".php"); //导入加密核心文件夹

$this->securityPropFile= $_SERVER["DOCUMENT_ROOT"] . "/ThinkPHP/Extend/Vendor/Netpay/config/security.properties"; //谁知道这是啥，反正他们要我加的

$this->b2cPaySend = __APP__."/Index/NetPay/b2cPaySend";

$this->b2cRefundSend = __APP__."/Index/NetPay/b2cRefundSend";

$this->b2cQuerySend = __APP__."/Index/NetPay/b2cQuerySend";

$this->;MerBgUrl = __APP__."/Index/NetPay/MerBgUrl";

$this->MerPageUrl = __APP__."/Index/NetPay/MerPageUrl";

}

public function index()

{

$paramArray=array (

"MerId" => "商户号",

"MerOrderNo" => "0000001944663232",

"OrderAmt" => "1",

"TranDate" => "20151219",

"TranTime" =>"171248",

"TranType" => "0001",

"BusiType" =>"0001",

"Version" => "20140728",

"CurryNo" => "CNY",

"AccessType" =>; "0",

"CommodityMsg" => "测试商品1号",

"MerPageUrl" => $this->MerBgUrl,

"MerBgUrl" =>$this->MerPageUrl,

"MerResv" => "MerResv",

);

if (count($paramArray) >0) {

$dispatchUrl = $this->b2cPaySend;

$transResvedJson = array();

$cardInfoJson = array();

$sendMap = array();

foreach ($paramArray as $key => $value) {

if (isEmpty($value)) {

continue;

}

if (startWith($key, "trans_")) {

$key = substr($key, strlen("trans_"));

$transResvedJson[$key] = $value;

} else

if (startWith($key, "card_")) {

$key = substr($key, strlen("card_"));

$cardInfoJson[$key] = $value;

} else {

$sendMap[$key] = $value;

}

}

$transResvedStr = null;

$cardResvedStr = null;

if (count($transResvedJson) >0) {

$transResvedStr = json_encode($transResvedJson);

}

if (count($cardInfoJson) > 0) {

$cardResvedStr = json_encode($cardInfoJson);

}

$secssUtil = new SecssUtil();

if (! isEmpty($transResvedStr)) {

$transResvedStr = $secssUtil->decryptData($transResvedStr);

$sendMap["TranReserved"] = $transResvedStr;

}

if (! isEmpty($cardResvedStr)) {

$cardResvedStr = $secssUtil->decryptData($cardResvedStr);

$sendMap["card_"] = $cardResvedStr;

}

$securityPropFile = $this>securityPropFile;

$secssUtil->init($securityPropFile);

$secssUtil->sign($sendMap);

$sendMap["Signature"] = $secssUtil->getSign();

$_SESSION = $sendMap;

header("Location:" . $dispatchUrl);

}

}

public function b2cPaySend(){

layout(false);

$settings = new Settings_INI();

$settings->oad($this->securityPropFile);

$pay_url = "https://payment.chinapay.com/CTITS/service/rest/page/nref/000000000017/0/0/0/0/0";

$html = "

;";

$params = "TranReserved;MerId;MerOrderNo;OrderAmt;CurryNo;TranDate;SplitMethod;BusiType;MerPageUrl;MerBgUrl;SplitType;MerSplitMsg;PayTimeOut;MerResv;Version;BankInstNo;CommodityMsg;Signature;AccessType;AcqCode;OrderExpiryTime;TranType;RemoteAddr;Referred;TranTime;TimeStamp;CardTranData";

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

if (strstr($params, $k)) {

$html .= "";

}

}

$html .= "";

$html .= "";

$this->html = $html;

$this->display();

}

public function pgReturn(){

if ($_POST) {

if (count($_POST) > 0) {

$secssUtil = new SecssUtil();

$securityPropFile = $this>securityPropFile;

$secssUtil->init($securityPropFile);

$text = array();

foreach($_POST as $key=>$value){

$text[$key] = urldecode($value);

}

if ($secssUtil->verify($text)) {

//支付成功

$_SESSION["VERIFY_KEY"] = "success";

} else {

//支付失败

$_SESSION["VERIFY_KEY"] = "fail";

}

}

}

}

}

银联支付应该是算比较简单的！！

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