更新时间:2015年06月11日 08:42:58   投稿:hebedich  



<form method="post" name="form" action="">
<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"/>


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 = '';//sandbox:
  function validate_ipn() {//验证IPN
      // parse the 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;