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| function VerifIXNID($txn_id)
{
$req = mysql_query("select txnid from paypal_payment_info where txnid='".$txn_id."'");
$nbr = mysql_num_rows($req);
if ($nbr == 0)
{
return 0;
}
else
{
return 1;
}
}
// lire le formulaire provenant du système PayPal et ajouter 'cmd'
$req = 'cmd=_notify-validate';
foreach ($_POST as $key => $value) {
$value = urlencode(stripslashes($value));
$req .= "&$key=$value";
}
// renvoyer au système PayPal pour validation
$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 ('www.paypal.com', 80, $errno, $errstr, 30);
$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'];
$user_id = $_POST['custom'];
$first_name = $_POST['first_name'];
$last_name = $_POST['last_name'];
$address_street = $_POST['address_street'];
$address_city = $_POST['address_city'];
$address_state = $_POST['address_state'];
$address_zip = $_POST['address_zip'];
$address_country = $_POST['address_country'];
$mc_fee = $_POST['mc_fee'];
$memo = $_POST['memo'];
$payment_type = $_POST['payment_type'];
$payment_date = $_POST['payment_date'];
$pending_reason = $_POST['pending_reason']; // Raison pour laquelle le paiement a été placé en attente.
$reason_code = $_POST['reason_code'];
$tax = $_POST['tax'];
$fecha = date("m")."/".date("d")."/".date("Y");
if (!$fp) {
// ERREUR HTTP
} else {
fputs ($fp, $header . $req);
while (!feof($fp)) {
$res = fgets ($fp, 1024);
if (strcmp ($res, "VERIFIED") == 0) {
// transaction valide
// vérifier que payment_status a la valeur Completed
if ( $payment_status == "Completed") {
// vérifier que txn_id n'a pas été précédemment traité: Créez une fonction qui va interroger votre base de données
$req = mysql_query("select txnid from paypal_payment_info where txnid='".$txn_id."'");
$res = mysql_num_rows($req);
mysql_query("UPDATE membres SET abo='1'");
if (VerifIXNID($txn_id) == 0) {
// vérifier que receiver_email est votre adresse email PayPal principale
if ( "monmail@gmail.com" == $receiver_email) {
// vérifier que payment_amount et payment_currency sont corrects
// traiter le paiement
$strQuery = mysql_query("INSERT INTO paypal_payment_info(paymentstatus, buyer_email, firstname, lastname, street, city,state, zipcode, country, mc_gross, mc_fee, memo, paymenttype, paymentdate, txnid, pendingreason, reasoncode, tax, datecreation, custom)
VALUES ('".$payment_status."','".$payer_email."','".$first_name."','".$last_name."','".$address_street."','".$address_city."','".$address_state."','".$address_zip."','".$address_country."','".$mc_gross."','".$mc_fee."','".$memo."','".$payment_type."','".$payment_date."','".$txn_id."','".$pending_reason."','".$reason_code."','".$tax."','".$fecha."','".$custom."')");
}
else {
// Mauvaise adresse email paypal
}
}
else {
// ID de transaction déjà utilisé
}
}
else {
// Statut de paiement: Echec
}
}
else if (strcmp ($res, "INVALID") == 0) {
// Transaction invalide
}
}
fclose ($fp);
} |
Paypal et IPN
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