How can the security of a PHP login system be enhanced beyond just using security codes?

One way to enhance the security of a PHP login system beyond just using security codes is to implement password hashing. This involves securely storing passwords in a hashed format rather than plain text, making it much harder for attackers to access user passwords even if they gain access to the database. 

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

// Verifying the hashed password during login
$entered_password = $_POST['password'];
$stored_password = "hashed_password_retrieved_from_database";

if (password_verify($entered_password, $stored_password)) {
    // Passwords match, proceed with login
} else {
    // Passwords do not match, display error message
}

Keywords

Two-factor authentication encryption password hashing secure session management CSRF protection

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