PayPal作为全球运用最广的在线支付工具,一直被很多外贸B2C网站纳为首选支付工具。不过对于自主开发网站的商户来说,PayPal接口的集成经常遇到很多问题,今天Lance就在这里给大家分享一下php项目中PayPal接口的集成方法。
简单整理一下PHP项目整合PayPal支付功能。
一、表单的构建:
- <form method="post" name="form" action="https://www.paypal.com/cgi-bin/webscr">
- <input type="hidden" name="rm" value="2"/>
- <input type="hidden" name="cmd" value="_xclick"/>
- <input type="hidden" name="business" value="商家账号"/>
- <input type="hidden" name="return" value="返回网址"/>
- <input type="hidden" name="cancel_return" value="取消返回网址"/>
- <input type="hidden" name="notify_url" value="用于接收PayPal发送的即时付款通知的URL,必须是有效的URL"/>
- <input type="hidden" name="item_name" value="物品名称"/>
- <input type="hidden" name="item_number" value="可用于跟踪购买或捐赠的传递变量,在付款完成时传回给您"/>
- <input type="hidden" name="amount" value="物品的价格(购物车中所有物品的总价格"/>
- <input type="hidden" name="currency_code" value="币种"/>
- </form>
二、IPN验证部分
- <?php
- class paypal {
- var $ipn_data = array(); // array contains the POST values for IPN
- var $fields = array(); // 提交给Paypal的表单参数,例:item_name=iPhone 6,quantity=1,amount=499,currency_code=USD等所有表单信息,
- // 在调用验证IPN之前事先需要初始化好
- var $paypal_url = 'https://www.paypal.com/cgi-bin/webscr';//sandbox:https://www.sandbox.paypal.com/cgi-bin/webscr
- function validate_ipn() {//验证IPN
- // parse the paypal URL
- $url_par=parse_url($this->paypal_url);
- // generate the post string from the _POST vars aswell as load the
- // _POST vars into an arry so we can play with them from the calling
- // script.
- $post_str = '';
- foreach ($_POST as $field=>$value) {
- $this->ipn_data["$field"] = $value;
- $post_str .= $field.'='.urlencode(stripslashes($value)).'&';
- }
- $post_str.="cmd=_notify-validate"; // append ipn command
- // open the connection to paypal
- $fp = fsockopen($url_par[host],"80",$errnum,$errstr,30);
- if(!$fp) {
- // could not open the connection.
- return false;
- } else {
- // Post the data back to paypal
- fputs($fp, "POST ".$url_par[path]." HTTP/1.1/r/n");
- fputs($fp, "Host: ".$url_par[host]."/r/n");
- fputs($fp, "Content-type: application/x-www-form-urlencoded/r/n");
- fputs($fp, "Content-length: ".strlen($post_str)."/r/n");
- fputs($fp, "Connection: close/r/n/r/n");
- fputs($fp, $post_str . "/r/n/r/n");
- // loop through the response from the server and append to variable
- while(!feof($fp)) {
- $this->validate_ipn_response .= fgets($fp, 1024);
- }
- fclose($fp); // close connection
- }
- if (eregi("VERIFIED",$this->validate_ipn_response)) {
- return true;
- } else {
- return false;
- }
- }
- }
- ?>
以上所述就是本文的全部内容了,希望大家能够喜欢。
新闻热点
疑难解答