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[this my code error]

Warning: Undefined array key "state" in C:\xampp\htdocs\ASS1\Confirmation.php on line 16 Warning: Undefined array key "postal_code" in C:\xampp\htdocs\ASS1\Confirmation.php on line 17 Warning: Undefined array key "detail_address" in C:\xampp\htdocs\ASS1\Confirmation.php on line 18 Warning: Undefined array key "product_name" in C:\xampp\htdocs\ASS1\Confirmation.php on line 22 Warning: Undefined array key "product_price" in C:\xampp\htdocs\ASS1\Confirmation.php on line 23 Warning: Undefined array key "total_price" in C:\xampp\htdocs\ASS1\Confirmation.php on line 26

<html>
<head>
    <title>Confirmation</title>
    <link rel="StyleSheet" type="text/css" href="StyleSheet.css">
</head>
<style >body {
            color: blue;
        }
</style>
<body>
    <h1>Confirmation</h1>

    <h2>User Information</h2>
    <p><b>Full Name:</b> <?php echo $_POST['full_name']; ?></p>
    <p><b>Phone Number:</b> <?php echo $_POST['phone_number']; ?></p>
    <p><b>State/Area:</b> <?php echo $_POST['state']; ?></p>
    <p><b>Postal Code:</b> <?php echo $_POST['postal_code']; ?></p>
    <p><b>Detail Address:</b> <?php echo $_POST['detail_address']; ?></p>
    <p><b>Notes:</b> <?php echo $_POST['notes']; ?></p>

    <h3>Product Details</h3>
    <p><b>Product Name:</b> <?php echo $_POST['product_name'];?></p>
    <p><b>Price:</b> <?php echo $_POST['product_price']; ?></p>

    <h3>Total Price</h3>
    <p><b>Total:</b> <?php echo $_POST['total_price']; ?></p>

    <h3>Payment Method</h3>
    <p><b>Selected Payment Method:</b> <?php echo $_POST['payment']; ?></p>
</body>
</html>
Nur Ayunie
  • 1
  • 1
  • Yes, that happens when you use `$_POST['key']` when `key` doesn't exist... – Scuzzy Apr 15 '23 at 04:30
  • You can use null coalescing operator to fix the error. Like below: `

    State/Area:

    ` it means if the array key is found it will print a value otherwise empty. You can learn more about the null coalescing operator [here](https://www.phptutorial.net/php-tutorial/php-null-coalescing-operator/)     – SK Shewa Apr 15 '23 at 06:29

0 Answers0