What considerations should be made when passing the ID of a data entry to a PHP script for deletion or editing?

When passing the ID of a data entry to a PHP script for deletion or editing, it is important to validate the ID to ensure it is a valid integer and not susceptible to SQL injection attacks. Additionally, you should check if the ID corresponds to a valid record in your database before proceeding with the deletion or editing operation. 

// Validate the ID parameter
$id = isset($_GET['id']) ? intval($_GET['id']) : null;

if ($id === null || $id <= 0) {
    // Handle invalid ID
    die("Invalid ID");
}

// Check if the record with the given ID exists in the database
// Perform deletion or editing operation

Keywords

SQL injection data validation prepared statements error handling security vulnerabilities

Related Questions