我正在尝试集成我在GitHub上找到的支付网关。我按照说明进行安装。当我运行网站时，出现错误。它说，
遇到了未捕获的异常 类型：异常消息：无法将字符串解析为XML 文件名：/Applications/XAMPP/xamppfiles/htdocs/application/libraries/Nab_library.php
我从gitHub下载了zip文件，并安装了它。
class nab_library {
private $merchant_id;
private $password;
private $payment_url;
public function __construct($params)
{
$this->merchant_id = $params['NAB_merchant_id'];
$this->password = $params['NAB_password'];
$this->payment_url = $params['NAB_payment_url'];
}
public function pay_now($data)
{
$nabXml = '<NABTransactMessage>
<MerchantInfo>
<merchantID>'.$this->merchant_id.'</merchantID>
<password>'.$this->password.'</password>
</MerchantInfo>
<RequestType>Payment</RequestType>
<Payment>
<TxnList count="1">
<Txn ID="1">
<txnType>0</txnType>
<txnSource>23</txnSource>
<amount>'.$data['cost'].'</amount>
<currency>AUD</currency>
<purchaseOrderNo>A'.$data['purchase_id'].'</purchaseOrderNo>
<CreditCardInfo>
<cardHolderName>test123</cardHolderName>
<cardNumber>'.$data['credit_card_no'].'</cardNumber>
<cvv>'.$data['security_code'].'</cvv>
<expiryDate>'.$data['expiry_month'].'/'.$data['expiry_year'].'</expiryDate>
</CreditCardInfo>
</Txn>
</TxnList>
</Payment>
</NABTransactMessage>';
$result = $this->makeCurlCall(
$this->payment_url, /* CURL URL */
"POST", /* CURL CALL METHOD */
array( /* CURL HEADERS */
/*<?xml version="1.0" encoding="UTF-8" ?>*/
"Content-Type: text/xml; charset=utf-8",
"Accept: text/xml",
"Pragma: no-cache",
"Content_length: ".strlen(trim($nabXml))
),
null, /* CURL GET PARAMETERS */
$nabXml /* CURL POST PARAMETERS AS XML */
);
$this->payment_process($result);
}
private function makeCurlCall($url, $method = "GET", $headers = null, $gets = null, $posts = null) {
$ch = curl_init();
if($gets != null)
{
$url.="?".(http_build_query($gets));
}
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
if($posts != null)
{
curl_setopt($ch, CURLOPT_POSTFIELDS, $posts);
}
if($method == "POST") {
curl_setopt($ch, CURLOPT_POST, true);
} else if($method == "PUT") {
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "PUT");
} else if($method == "HEAD") {
curl_setopt($ch, CURLOPT_NOBODY, true);
}
if($headers != null && is_array($headers))
{
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
}
$response = curl_exec($ch);
$code = curl_getinfo($ch,CURLINFO_HTTP_CODE);
curl_close($ch);
return array(
"code" => $code,
"response" => $response
);
}
/**
* Processes the result obtained from the NAB API.
*
* @access public
* @param array
*/
private function payment_process($result)
{
$response = new SimpleXMLElement($result['response']);
$simple = simplexml_load_string($result['response']);
$approved = (string) $simple->Payment->TxnList->Txn->approved;
$responseCode = (string) $simple->Payment->TxnList->Txn->responseCode;
//Display result based on response code found in result array.
if($approved == 'Yes' && ($responseCode == '00' || $responseCode == '08')){
echo 'Success: Payment has been successfully made.';
} else {
if($responseCode == '101') {
echo 'Error: Invalid Credit Card Number - Payment was not processed';
} else if($responseCode == '109') {
echo 'Error: Invalid CVV2/CVC2 - Payment was not processed';
} else if($responseCode == '51') {
echo 'Error: Insufficient Funds - Payment was not processed';
} else {
echo 'Error: Unkown Error - Payment was not processed';
}
}
}
}
/* End of file nab_library.php */
/* Location: ./application/libraries/nab_library.php */
视图文件：
<?php echo form_open('Pay_now/index'); ?>
<table>
<tr>
<td><label>Booking ID: </label></td>
<td><input type="text" name="purchase_id" value="PO1234"></td>
</tr>
<tr>
<td><label>Cost: $</label></td>
<td><input type="text" name="cost" value="120.00"></td>
</tr>
<tr>
<td><label>Credit Card Number: </label></td>
<td><input type="text" name="credit_card_no" value="4444333322221111"></td>
</tr>
<tr>
<td><label>Expiry Date: </label></td>
<td><input type="text" name="expiry_month" value="05"><input type="text" name="expiry_year" value="16"></td>
</tr>
<tr>
<td><label>CVV: </label></td>
<td><input type="text" name="security_code" value="123"></td>
</tr>
<tr>
<td> </td>
<td><input type="submit" name="submit" value="Pay"></td>
</tr>
</table>
</form>
和控制器：pay_now.php
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Pay_now extends CI_Controller {
/**
* Index Page for this controller.
*
* Maps to the following URL
* http://example.com/index.php/pay_now
* - or -
* http://example.com/index.php/pay_now/index
* - or -
* Since this controller is set as the default controller in
* config/routes.php, it's displayed at http://example.com/
*
* So any other public methods not prefixed with an underscore will
* map to /index.php/pay_now/<method_name>
* @see http://codeigniter.com/user_guide/general/urls.html
*/
public function index()
{
$this->load->library('form_validation');
$config = array(
array(
'field' => 'credit_card_no',
'label' => 'Credit Card Number',
'rules' => 'required'
),
array(
'field' => 'expiry_month',
'label' => 'Expiry Month',
'rules' => 'required'
),
array(
'field' => 'expiry_year',
'label' => 'Expiry Year',
'rules' => 'required'
),
array(
'field' => 'security_code',
'label' => 'CVV',
'rules' => 'required'
),
array(
'field' => 'purchase_id',
'label' => 'Purchase Id/Number',
'rules' => 'required'
),
array(
'field' => 'cost',
'label' => 'Cost/Amount',
'rules' => 'required'
),
);
$this->form_validation->set_rules($config);
if ($this->form_validation->run() == FALSE)
{
$this->load->view('pay_now');
} else {
$params = array(
'NAB_merchant_id' => $this->config->item('NAB_merchant_id'),
'NAB_password' => $this->config->item('NAB_password'),
'NAB_payment_url' => $this->config->item('NAB_payment_url'),
);
$this->load->library('nab_library', $params);
$data['credit_card_no'] = $this->input->post('credit_card_no');
$data['expiry_month'] = $this->input->post('expiry_month');
$data['expiry_year'] = $this->input->post('expiry_year');
$data['security_code'] = $this->input->post('security_code');
$data['cost'] = $this->input->post('cost') * 100;
$data['purchase_id'] = $this->input->post('purchase_id');
$this->nab_library->pay_now($data);
}
}
}
/* End of file pay_now.php */
/* Location: ./application/controllers/pay_now.php */