ipn.php

<?php
class PayPal_IPN{
function infotuts_ipn($im_debut_ipn) {

        define('SSL_P_URL', 'https://www.paypal.com/cgi-bin/webscr');
        define('SSL_SAND_URL', 'https://www.sandbox.paypal.com/cgi-bin/webscr');
        $hostname = gethostbyaddr($_SERVER['REMOTE_ADDR']);
        if (!preg_match('/paypal\.com$/', $hostname)) {
            $ipn_status = 'Validation post isn\'t from PayPal';
            if ($im_debut_ipn == true) {
				// mail test
            }

            return false;
        }

      // parse the paypal URL
        $paypal_url = ($_REQUEST['test_ipn'] == 1) ? SSL_SAND_URL : SSL_P_URL;
        $url_parsed = parse_url($paypal_url);
		
	    $post_string = '';
        foreach ($_REQUEST as $field => $value) {
            $post_string .= $field . '=' . urlencode(stripslashes($value)) . '&';
        }
        $post_string.="cmd=_notify-validate"; // append ipn command
        // get the correct paypal url to post request to
        $paypal_mode_status = $im_debut_ipn; //get_option('im_sabdbox_mode');
        if ($paypal_mode_status == true)
            $fp = fsockopen('ssl://www.sandbox.paypal.com', "443", $err_num, $err_str, 60);
        else
            $fp = fsockopen('ssl://www.paypal.com', "443", $err_num, $err_str, 60);

        $ipn_response = '';

        if (!$fp) {
// could not open the connection.  If loggin is on, the error message
// will be in the log.
            $ipn_status = "fsockopen error no. $err_num: $err_str";
            if ($im_debut_ipn == true) {
                echo 'fsockopen fail';
            }
            return false;
        } else {
// Post the data back to paypal
            fputs($fp, "POST $url_parsed[path] HTTP/1.1\r\n");
            fputs($fp, "Host: $url_parsed[host]\r\n");
            fputs($fp, "Content-type: application/x-www-form-urlencoded\r\n");
            fputs($fp, "Content-length: " . strlen($post_string) . "\r\n");
            fputs($fp, "Connection: close\r\n\r\n");
            fputs($fp, $post_string . "\r\n\r\n");

// loop through the response from the server and append to variable
            while (!feof($fp)) {
                $ipn_response .= fgets($fp, 1024);
            }
            fclose($fp); // close connection
        }

// Invalid IPN transaction.  Check the $ipn_status and log for details.
        if (!preg_match("/VERIFIED/s", $ipn_response)) {
            $ipn_status = 'IPN Validation Failed';

            if ($im_debut_ipn == true) {
                echo 'Validation fail';
                print_r($_REQUEST);
            }
            return false;
        } else {
            $ipn_status = "IPN VERIFIED";
            if ($im_debut_ipn == true) {
                echo 'SUCCESS';
                
				}

            return true;
        }
    }

	
	function ipn_response($request){
	mail("harpalikli@hotmail.com","My subject",print_r($request,true));
	$im_debut_ipn=true;
	    if ($this->infotuts_ipn($im_debut_ipn)) {
			
			// if paypal sends a response code back let's handle it        
		           if ($im_debut_ipn == true) {
                    $sub = 'PayPal IPN Debug Email Main';
                    $msg = print_r($request, true);
                    $aname = 'infotuts';
                  //mail send
                }

				// process the membership since paypal gave us a valid +
                $this->insert_data($request);
            }
	}
function issetCheck($post,$key){
if(isset($post[$key])){
$return=$post[$key];
}
else{
$return='';
}
return $return;
}	
	function insert_data($request){
	require_once('dbconnect.php');
	

$post=$request;
$amount=$this->issetCheck($post,'mc_gross');
$currency=$this->issetCheck($post,'mc_currency');
$payer_email=$this->issetCheck($post,'payer_email');
$first_name=$this->issetCheck($post,'first_name');
$last_name=$this->issetCheck($post,'last_name');
$country=$this->issetCheck($post,'residence_country');
$txn_id=$this->issetCheck($post,'txn_id');
$txn_type=$this->issetCheck($post,'txn_type');
$payment_status=$this->issetCheck($post,'payment_status');
$payment_type=$this->issetCheck($post,'payment_type');
$payment_date_raw=$this->issetCheck($post,'payment_date');
$num_cart_items = $this->issetCheck($post,'num_cart_items');

date_default_timezone_set("Europe/London");
$payment_date_split = strtotime($payment_date_raw);
$payment_date = date('Y-m-d H:i:s', $payment_date_split);

mysqli_query($con,"INSERT INTO transactions (payer_email,first_name,last_name,amount,currency,country,txn_id,txn_type,payment_status,payment_type,payment_date, num_cart_items) 
VALUES ('$payer_email','$first_name','$last_name','$amount','$currency','$country','$txn_id','$txn_type','$payment_status','$payment_type', '$payment_date','$num_cart_items')");
$tid = mysqli_insert_id($con);
$orderid = $this->issetCheck($post,'custom');
mysqli_query($con, "UPDATE orders SET transactionid = $tid WHERE id=$orderid ");
error_log("Error: %s.\n" . mysqli_error($con));
mysqli_close($con);
	
	
	
	}
	}
	$obj = New PayPal_IPN();
	$obj->ipn_response($_REQUEST);
	
	?>