IPN - fsockopen

[Freid001]

Hi I am looking to create some IPN script for pay pal however my host blocks this function : fsockopen

The IPN script will basicly updated player accounts with credits when people purchase them

 

PAY PAL IPN:

// PHP 4.1

// read the post from PayPal system and add 'cmd'
$req = 'cmd=_notify-validate';

foreach ($_POST as $key => $value) {
$value = urlencode(stripslashes($value));
$req .= "&$key=$value";
}

// post back to PayPal system to validate
$header .= "POST /cgi-bin/webscr HTTP/1.0\r\n";
$header .= "Content-Type: application/x-www-form-urlencoded\r\n";
$header .= "Content-Length: " . strlen($req) . "\r\n\r\n";
$fp = fsockopen ('ssl://www.sandbox.paypal.com', 80, $errno, $errstr, 30);

// assign posted variables to local variables
$item_name = $_POST['item_name'];
$item_number = $_POST['item_number'];
$payment_status = $_POST['payment_status'];
$payment_amount = $_POST['mc_gross'];
$payment_currency = $_POST['mc_currency'];
$txn_id = $_POST['txn_id'];
$receiver_email = $_POST['receiver_email'];
$payer_email = $_POST['payer_email'];

if (!$fp) {
// HTTP ERROR
} else {
fputs ($fp, $header . $req);
while (!feof($fp)) {
$res = fgets ($fp, 1024);
if (strcmp ($res, "VERIFIED") == 0) {
if ($payment_status=="Completed"){
if ($payment_amount==0.99&&$payment_currency=="GBP"){
$AD = 100;
$AD2 = $credits + $AD;
mysql_query("UPDATE Game SET Credits = '$AD2'WHERE user = '$update'");
}
if ($payment_amount==2.50&&$payment_currency=="GBP"){
$AD = 500;
$AD2 = $credits + $AD;
mysql_query("UPDATE Game SET Credits = '$AD2'WHERE user = '$update'");
}
if ($payment_amount==5.00&&$payment_currency=="GBP"){
$AD = 1000;
$AD2 = $credits + $AD;
mysql_query("UPDATE Game SET Credits = '$AD2'WHERE user = '$update'");
}
if ($payment_amount==10.00&&$payment_currency=="GBP"){
$AD = 10000;
$AD2 = $credits + $AD;
mysql_query("UPDATE Game SET Credits = '$AD2'WHERE user = '$update'");
}
if ($payment_amount==49.99&&$payment_currency=="GBP"){
$AD = 100000;
$AD2 = $credits + $AD;
mysql_query("UPDATE Game SET Credits = '$AD2'WHERE user = '$update'");
}
}
else if (strcmp ($res, "INVALID") == 0) {
// log for manual investigation
}
}
fclose ($fp);
}
}

 

So what I have basically done is remove the fsockopen as seen below:

 

// PHP 4.1

// read the post from PayPal system and add 'cmd'
$req = 'cmd=_notify-validate';

foreach ($_POST as $key => $value) {
$value = urlencode(stripslashes($value));
$req .= "&$key=$value";
}

// post back to PayPal system to validate
$header .= "POST /cgi-bin/webscr HTTP/1.0\r\n";
$header .= "Content-Type: application/x-www-form-urlencoded\r\n";
$header .= "Content-Length: " . strlen($req) . "\r\n\r\n";
$item_name = $_POST['item_name'];
$item_number = $_POST['item_number'];
$payment_status = $_POST['payment_status'];
$payment_amount = $_POST['mc_gross'];
$payment_currency = $_POST['mc_currency'];
$txn_id = $_POST['txn_id'];
$receiver_email = $_POST['receiver_email'];
$payer_email = $_POST['payer_email'];


if ($payment_status=="Completed"){
if ($payment_amount==0.99&&$payment_currency=="GBP"){
$AD = 100;
$AD2 = $credits + $AD;
mysql_query("UPDATE Game SET Credits = '$AD2'WHERE user = '$update'");
}
if ($payment_amount==2.50&&$payment_currency=="GBP"){
$AD = 500;
$AD2 = $credits + $AD;
mysql_query("UPDATE Game SET Credits = '$AD2'WHERE user = '$update'");
}
if ($payment_amount==5.00&&$payment_currency=="GBP"){
$AD = 1000;
$AD2 = $credits + $AD;
mysql_query("UPDATE Game SET Credits = '$AD2'WHERE user = '$update'");
}
if ($payment_amount==10.00&&$payment_currency=="GBP"){
$AD = 10000;
$AD2 = $credits + $AD;
mysql_query("UPDATE Game SET Credits = '$AD2'WHERE user = '$update'");
}
if ($payment_amount==49.99&&$payment_currency=="GBP"){
$AD = 100000;
$AD2 = $credits + $AD;
mysql_query("UPDATE Game SET Credits = '$AD2'WHERE user = '$update'");
}
}
if ($payment_status=="Failed"){
echo "Payment Failed!";
} 
if ($payment_status!=""){
echo "Error processing payment!";
}else {
echo "No payment made";
}

 

 

My question is this will this still work with paypal? I tried pay pal IPN sand box and it updates but im not sure weather the code needs this function fsockopen into send data back to paypal.