What are some common methods for securing a login system in PHP?

Securing a login system in PHP involves implementing measures such as password hashing, using prepared statements to prevent SQL injection attacks, and implementing measures to prevent brute force attacks. 

// Hashing the password before storing it in the database
$password = password_hash($_POST['password'], PASSWORD_DEFAULT);

// Using prepared statements to prevent SQL injection
$stmt = $pdo->prepare("SELECT * FROM users WHERE username = :username");
$stmt->execute(['username' => $username]);

// Implementing measures to prevent brute force attacks
// For example, limiting login attempts or implementing CAPTCHA

Keywords

password hashing session management CSRF protection SQL injection prevention two-factor authentication

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