How can the issue with mismatched ID values be resolved in the PHP script?

The issue with mismatched ID values can be resolved by ensuring that the IDs used in the script match the IDs in the database. This can be achieved by checking the database for the correct ID values before using them in the script. Additionally, using prepared statements can help prevent SQL injection attacks and ensure that the correct ID values are used.

// Check if the ID exists in the database before using it
$id = $_GET['id']; // Assuming the ID is passed as a parameter in the URL
$stmt = $pdo->prepare("SELECT * FROM table WHERE id = :id");
$stmt->bindParam(':id', $id);
$stmt->execute();

if($stmt->rowCount() > 0) {
    // ID exists, proceed with using it in the script
    // Your code here
} else {
    // ID does not exist, handle the error
    echo "Invalid ID";
}