PHP实现的交通银行网银在线支付接口ECSHOP插件和使用例子

最近，一个项目要求做交通银行在线支付，ecshop本身没有这方面的接口，于是通过一些时间的专研，做了一个插件出来。有好的东西，当然要分享，在此特地分享出来，希望能够帮助到跟我一样有需要的人，为大家减轻一下开发的负担，也多请大家指出一些好的方法和建议，相互的学习、进步！


在使用插件之前，请配置好交通银行在线支付的环境（具体安装方法，交行提供的demo会有，也不是很难，注意好细节就行）。安装好之后，请将把下面的插件源码和语言包源码按路径保存到相应文件，最后进入后台的支付模块安装即可。

插件源码（includes/modules/payment/bankcomm.php）:

<?php

/**
 * 交通银行在线支付插件 for ecshop
 * author: reson
 * date: 2014/03/31
 */

if (!defined('in_ecs'))
{
 die('hacking attempt');
}

$payment_lang = root_path . 'languages/' .$globals['_cfg']['lang']. '/payment/bankcomm.php';

if (file_exists($payment_lang))
{
 global $_lang;
 include_once($payment_lang);
}

/* 模块的基本信息 */
if (isset($set_modules) && $set_modules == true)
{
 $i = isset($modules) ? count($modules) : 0;

 /* 代码 */
 $modules[$i]['code']    = basename(__file__, '.php');

 /* 描述对应的语言项 */
 $modules[$i]['desc']    = 'bankcomm_desc';

 /* 是否支持货到付款 */
 $modules[$i]['is_cod']  = '0';

 /* 是否支持在线支付 */
 $modules[$i]['is_online']  = '1';

 /* 支付费用，由配送决定 */
 $modules[$i]['pay_fee'] = '0';

 /* 作者 */
 $modules[$i]['author']  = 'reson';

 /* 网址 */
 $modules[$i]['website'] = '//www.jb51.net';

 /* 版本号 */
 $modules[$i]['version'] = '1.0.0.0';

 /* 配置信息 */
 $modules[$i]['config']  = array();

 return;
}

/**
 * 类
 */
class bankcomm
{
 /**
  * 构造函数
  *
  * @return void
  */
 function bankcomm()
 {
 }

 function __construct()
 {
  $this->bankcomm();
 }

 /**
  * 提交函数
  */
 function get_code($order)
 {
  //获得表单传过来的数据
  $param['interfaceversion'] = '1.0.0.0'; //消息版本号*
  $param['merid'] = '301310063009501'; //商户号 (测试号,后期可自行更改)
  $param['orderid'] = $order['orderid']; //订单号*
  $param['orderdate'] = local_date("ymd",gmtime()); //商户订单日期* yyyymmdd
  $param['ordertime'] = local_date("his",gmtime()); //商户订单时间* hhmmss
  $param['trantype'] = 0; //交易类别* 0:b2c
  $param['amount'] = $order['amount']; //订单金额*
  $param['curtype'] = 'cny'; //交易币种* 默认cny
  $param['ordercontent'] = '';
  $param['ordermono'] = $order['ordermono']; //商家备注
  $param['phdflag'] = ''; //物流配送标志
  $param['notifytype'] = 1; //通知方式* 1 通知
  $param['merurl'] = ''; 
  $param['goodsurl'] = $order['goodsurl']; //取货url
  $param['jumpseconds'] = '';
  $param['paybatchno'] = '';
  $param['proxymername'] = '';
  $param['proxymertype'] = '';
  $param['proxymercredentials'] = '';
  $param['nettype'] = 0; //渠道编号* 0:html渠道
  $param['issbankno'] = '';

  $trancode = "cb2200_sign";

  htmlentities($param['ordermono'],"ent_quotes","utf-8");
  //连接字符串
  $source = '';
  foreach($param as $key=>$val){
   if($key != 'issbankno')
   $source .= $val.'|';
  }
  $source = substr($source,0,strlen($source)-1);

  //连接地址
  $socketurl = "tcp://127.0.0.1:8080"; //这里的端口根据自己配置的情况
  $fp = stream_socket_client($socketurl, $errno, $errstr, 30);
  $retmsg="";
  //
  if (!$fp) {
   echo "$errstr ($errno)<br />\n";
  } else
  {
   $in  = "<?xml version='1.0' encoding='utf-8'?>";
   $in .= "<message>";
   $in .= "<trancode>".$trancode."</trancode>";
   $in .= "<msgcontent>".$source."</msgcontent>";
   $in .= "</message>";
   fwrite($fp, $in);
   while (!feof($fp)) {
    $retmsg =$retmsg.fgets($fp, 1024); 
   }
   fclose($fp);
  } 
  //解析返回xml
  $dom = new domdocument;
  $dom->loadxml($retmsg);

  $retcode = $dom->getelementsbytagname('retcode');
  $retcode_value = $retcode->item(0)->nodevalue;

  $errmsg = $dom->getelementsbytagname('errmsg');
  $errmsg_value = $errmsg->item(0)->nodevalue;

  $signmsg = $dom->getelementsbytagname('signmsg');
  $signmsg_value = $signmsg->item(0)->nodevalue;

  $orderurl = $dom->getelementsbytagname('orderurl');
  $orderurl_value = $orderurl->item(0)->nodevalue;

  $merchid = $dom->getelementsbytagname('merchid');
  $merid = $merchid->item(0)->nodevalue;
  //echo "retmsg=".$retmsg;
  //echo $retcode_value." ".$errmsg_value." ".$signmsg_value." ".$orderurl_value;
  if($retcode_value != "0"){
   //echo "交易返回码：".$retcode_value."<br>";
   //echo "交易错误信息：" .$errmsg_value."<br>";
   return "交易错误信息：" .$errmsg_value."<br>";
  }else{
   $param['signmsg_value'] = $signmsg_value;
   $param['orderurl_value'] = $orderurl_value;
   $form_code = $this->create_html($param); //创建提交表单
   return $form_code;
  }

 }

 /**
  * 创建提交表单
  */
 function create_html($param){
  $pay_html ='<form name = "form1" method = "post" action = "'.$param['orderurl_value'].'">
  <input type = "hidden" name = "interfaceversion" value = "'.$param['interfaceversion'].'">
  <input type = "hidden" name = "merid" value = "'.$param['merid'].'">
  <input type = "hidden" name = "orderid" value = "'.$param['orderid'].'">
  <input type = "hidden" name = "orderdate" value = "'.$param['orderdate'].'">
  <input type = "hidden" name = "ordertime" value = "'.$param['ordertime'].'">
  <input type = "hidden" name = "trantype" value = "'.$param['trantype'].'">
  <input type = "hidden" name = "amount" value = "'.$param['amount'].'">
  <input type = "hidden" name = "curtype" value = "'.$param['curtype'].'">
  <input type = "hidden" name = "ordercontent" value = "'.$param['ordercontent'].'">
  <input type = "hidden" name = "ordermono" value = "'.$param['ordermono'].'">
  <input type = "hidden" name = "phdflag" value = "'.$param['phdflag'].'">
  <input type = "hidden" name = "notifytype" value = "'.$param['notifytype'].'">
  <input type = "hidden" name = "merurl" value = "'.$param['merurl'].'">
  <input type = "hidden" name = "goodsurl" value = "'.$param['goodsurl'].'">
  <input type = "hidden" name = "jumpseconds" value = "'.$param['jumpseconds'].'">
  <input type = "hidden" name = "paybatchno" value = "'.$param['paybatchno'].'">
  <input type = "hidden" name = "proxymername" value = "'.$param['proxymername'].'">
  <input type = "hidden" name = "proxymertype" value = "'.$param['proxymertype'].'">
  <input type = "hidden" name = "proxymercredentials" value = "'.$param['proxymercredentials'].'">
  <input type = "hidden" name = "nettype" value = "'.$param['nettype'].'">
  <input type = "hidden" name = "mersignmsg" value = "'.$param['signmsg_value'].'">
  <input type = "hidden" name = "issbankno" value = "'.$param['issbankno'].'">

  <input type="submit" value=" " class="pay_button" />
  </form>';
  return $pay_html;
 }

 /**
  * 处理函数
  */
 function respond()
 {  
  $trancode = "cb2200_verify";
  $notifymsg = $_request["notifymsg"];  
  $lastindex = strripos($notifymsg,"|");
  $signmsg = substr($notifymsg,$lastindex+1); //签名信息
  $srcmsg = substr($notifymsg,0,$lastindex+1);//原文

  //连接地址
  $socketurl = "tcp://127.0.0.1:8080";
  $fp = stream_socket_client($socketurl, $errno, $errstr, 30);
  $retmsg="";
  if (!$fp) {
   //echo "$errstr ($errno)<br />\n";
   return false;
  }else{
   $in  = "<?xml version='1.0' encoding='utf-8'?>";
   $in .= "<message>";
   $in .= "<trancode>".$trancode."</trancode>";
   $in .= "<msgcontent>".$notifymsg."</msgcontent>";
   $in .= "</message>";
   fwrite($fp, $in);
   while (!feof($fp)) {
    $retmsg =$retmsg.fgets($fp, 1024); 
   }
   fclose($fp);
  } 

  //解析返回xml
  $dom = new domdocument;
  $dom->loadxml($retmsg);

  $retcode = $dom->getelementsbytagname('retcode');
  $retcode_value = $retcode->item(0)->nodevalue;

  $errmsg = $dom->getelementsbytagname('errmsg');
  $errmsg_value = $errmsg->item(0)->nodevalue;

  $signmsg = $dom->getelementsbytagname('signmsg');
  $signmsg_value = $signmsg->item(0)->nodevalue;

  if($retcode_value != ''){
   //echo "交易返回码：".$retcode_value."<br>";
   //echo "交易错误信息：" .$errmsg_value."<br>";
   return false;
  }else{
   $arr = preg_split("/\|{1,}/",$srcmsg); 
   $pay_id = $arr[1];
   $action_note = base64_decode($arr[16]);
   // 完成订单。
   order_paid($pay_id, ps_payed, $action_note);
   //告诉用户交易完成
   return true; 
  }

  ///////////////// respond end ///////////////
 }

}

?>

语言包源码（languages/zh_cn/payment/bankcomm.php）:

<?php

/**
 * 交通银行语言文件
 * by: reson
 * 2014/03/31
 */

global $_lang;

$_lang['bankcomm'] = '交通银行在线支付';
$_lang['bankcomm_desc'] = '交通银行在线支付';
$_lang['pay_button'] = '交通银行支付';

?>

以下是调用的范例：

include_once(root_path . 'includes/modules/payment/bankcomm.php');
$order_['orderid'] = $order['order_sn'];
$order_['amount'] = $order['yd_price'];
$order_['ordermono'] = '测试'; //商家备注
$order_['goodsurl'] = "http://".$_server['http_host'].'/respond.php?code=bankcomm'; //取货url
$pay_code = new bankcomm;
$pay_button = $pay_code->get_code($order_);
$order['pay_button'] = $pay_button; //即此时已经生成了一个支付按钮