What strategies can be used to ensure that the correct serverID is passed to another table when using PHP and MySQL?

When passing the serverID to another table in PHP and MySQL, it is important to ensure that the correct serverID is being passed to avoid errors or data inconsistencies. One strategy to ensure this is to validate the serverID before passing it to the other table. This can be done by checking if the serverID exists in the database before performing any operations with it. 

// Validate the serverID before passing it to another table
$serverID = $_POST['serverID'];

// Check if the serverID exists in the database
$query = "SELECT * FROM servers WHERE serverID = $serverID";
$result = mysqli_query($connection, $query);

if(mysqli_num_rows($result) > 0) {
    // ServerID is valid, proceed with passing it to another table
    $query = "INSERT INTO other_table (serverID) VALUES ($serverID)";
    mysqli_query($connection, $query);
} else {
    // ServerID is not valid, handle the error accordingly
    echo "Invalid serverID";
}

Keywords

PHP MySQL serverID data validation foreign key constraints

Related Questions