Are there additional security measures beyond input validation that should be implemented in PHP login scripts?

To enhance security in PHP login scripts beyond input validation, additional measures such as using prepared statements with parameterized queries to prevent SQL injection attacks, implementing secure password hashing with functions like password_hash() and password_verify(), enforcing strong password policies, enabling HTTPS to encrypt data transmission, and implementing measures like rate limiting to prevent brute force attacks are recommended. 

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

Keywords

SQL injection password hashing session management CSRF protection secure coding practices

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