What are some common pitfalls when using PHP to create form submissions on a website?

One common pitfall when using PHP to create form submissions on a website is not properly sanitizing user input, which can leave the website vulnerable to SQL injection attacks. To solve this issue, always use prepared statements or parameterized queries when interacting with a database to prevent SQL injection attacks. 

// Example of using prepared statements to prevent SQL injection
$stmt = $pdo->prepare('INSERT INTO users (username, password) VALUES (:username, :password)');
$stmt->bindParam(':username', $username);
$stmt->bindParam(':password', $password);
$stmt->execute();

Keywords

SQL injection cross-site scripting form validation CSRF protection error handling

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