How can PHP developers ensure data security when handling user inputs in web forms?

PHP developers can ensure data security when handling user inputs in web forms by using prepared statements with parameterized queries to prevent SQL injection attacks. Additionally, they should validate and sanitize user inputs to prevent cross-site scripting (XSS) attacks. Finally, developers should implement proper input validation and use secure encryption methods when storing sensitive data. 

// Example of using prepared statements with parameterized queries to prevent SQL injection
$stmt = $pdo->prepare('SELECT * FROM users WHERE username = :username');
$stmt->bindParam(':username', $username);
$stmt->execute();

Keywords

SQL injection cross-site scripting data validation prepared statements input sanitization

Related Questions