<?

//The following requests are for raw, non-validated form data. Obviously, these requests should all be cleaned and validated prior to use in a live application. This is only a demonstration

$date_time =date("YmdHis");

$username = $_REQUEST['username'];
$password = $_REQUEST['password'];
$trans_type = "Sale";
$card_number = $_REQUEST['card_number'];
$exp = $_REQUEST['exp'];
$mag_data = $_REQUEST['mag_data'];
$name_on_card = $_REQUEST['name_on_card'];
$ammt = $_REQUEST['ammt'];

$inv_number = "INV_".$date_time;
$po_number = "PO_".$date_time;

$zip = $_REQUEST['zip'];
$street = $_REQUEST['street'];
$cvv = $_REQUEST['cvv'];
$ext_data = $_REQUEST['ext_data'];

//Call the PaymentSphere gateway________________________________________

//Note https://secure.payment-engine.com/SmartPayments/transact.asmx/ in $url refers to the paymentsphere gateway server that is being called. As there are several, you will want to confirm with your account rep that you are calling the right server for integration

$url = file_get_contents("https://secure.paymentsphere.com/
SmartPayments/transact.asmx/ProcessCreditCard?
UserName=$username&Password=$password&TransType=$trans_type&CardNum=$card_number&
ExpDate=$exp&MagData=$mag_data&NameOnCard=$name_on_card&Amount=$ammt&
InvNum=$inv_number&PNRef=$po_number&Zip=$zip&Street=$street&
CVNum=$cvv&ExtData=$ext_data");

//Parse out XML tags from gateway response for demonstration purposes

$string1 = str_replace('<?xml version="1.0" encoding="utf-8" ?>','',$url);
$string2 = str_replace('<Result>','Result:',$string1);
$string3 = str_replace('</Result>','</br>',$string2);
$string4 = str_replace('<Message>','<b>Message:</b> ',$string3);
$string5 = str_replace('</Message>','</br>',$string4);
$string6 = str_replace('<RespMSG>','<b>Response:</b> ',$string5);
$string7 = str_replace('</RespMSG>','</br>',$string6);
$string8 = str_replace('- ','',$string7);
$string9 = str_replace('<?xml version="1.0" encoding="utf-8"?>','',$string8);
$string10 = str_replace('</Response>','',$string9);

$result = $string10;

echo "<br />$result<br />";

// Parse response to see if card is approved

preg_match ("/Approved/", $result, $result_matched);
$approved = $result_matched['0'];

If($approved !=""){
echo"<br />Approved...now do something<br />";
}else{
echo"Denied";
}

?>