What are some common mistakes to avoid when implementing a PHP single auction software?

One common mistake to avoid when implementing a PHP single auction software is not properly sanitizing user input, which can leave your application vulnerable to SQL injection attacks. To prevent this, always use prepared statements when interacting with your database to ensure that user input is properly escaped. 

// Using prepared statements to prevent SQL injection
$stmt = $pdo->prepare("SELECT * FROM auctions WHERE id = :id");
$stmt->bindParam(':id', $auctionId, PDO::PARAM_INT);
$stmt->execute();
$auction = $stmt->fetch();

Keywords

SQL injection XSS attacks CSRF protection file uploads data validation

Related Questions