What are common pitfalls when creating a PHP contact form?

One common pitfall when creating a PHP contact form is not properly sanitizing user input, which can leave your form vulnerable to SQL injection attacks. To solve this issue, always use prepared statements when interacting with your database to prevent malicious code from being executed. 

// Connect to database
$pdo = new PDO('mysql:host=localhost;dbname=database', 'username', 'password');

// Prepare SQL statement
$stmt = $pdo->prepare("INSERT INTO contacts (name, email, message) VALUES (:name, :email, :message)");

// Bind parameters and execute
$stmt->bindParam(':name', $_POST['name']);
$stmt->bindParam(':email', $_POST['email']);
$stmt->bindParam(':message', $_POST['message']);
$stmt->execute();

Keywords

validation security SQL injection CSRF error handling

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