I have a paypal button on my page, where in I need to receive payment. I downloaded the code from HERE , all works fine it takes me to paypal page I can send money adn recieve it too(I am using sandbox account).
However when transaction is complete and click on Return to merchant It shows me Payment has failed. I have $_GET['variable'] to access different transaction infos.
Heres my code for `success.php' page :
<?php
include_once("db_connect.php");
/*include './db_config.php';*/
//Store transaction information into database from PayPal
$item_number = $_GET['item_number'];
$txn_id = $_GET['tx'];
$payment_gross = $_GET['amt'];
$currency_code = $_GET['cc'];
$payment_status = $_GET['st'];
echo $txn_id;
//Get product price to store into database
$sql = "SELECT * FROM products WHERE id = '$item_number'";
$resultset = mysqli_query($conn, $sql) or die("database error:".
mysqli_error($conn));
$row = mysqli_fetch_assoc($resultset);
if(!empty($txn_id) && $payment_gross == $row['price']){
//Insert tansaction data into the database
mysqli_query($conn, "INSERT INTO payments(item_number,txn_id,payment_gross,currency_code,payment_status)VALUES('".$item_number."','".$txn_id."','".$payment_gross."','".$currency_code."','".$payment_status."')");
$last_insert_id = mysqli_insert_id($conn);
?>
<h1>Your payment has been successful.</h1>
<h1>Your Payment ID - <?php echo $last_insert_id; ?>.</h1>
<?php
}else{
?>
<h1>Your payment has failed.</h1>
<?php
}
?>
As you can see I tried to ECHO txn_id but no value. What am I missing here.
