In PHP authentication systems, how do I optimize performance?

PHP authentication, optimize performance, web development, secure authentication, efficient PHP code

Learn how to optimize the performance of PHP authentication systems for faster and more efficient web applications with best practices and examples.


            <?php
            // Example of optimized PHP authentication
            class Auth {
                private $db;

                public function __construct($dbConnection) {
                    $this->db = $dbConnection;
                }

                public function login($username, $password) {
                    // Use prepared statements to prevent SQL injection
                    $stmt = $this->db->prepare("SELECT * FROM users WHERE username = :username");
                    $stmt->bindParam(':username', $username);
                    $stmt->execute();
                    $user = $stmt->fetch();

                    if ($user && password_verify($password, $user['password'])) {
                        // Regenerate session ID to prevent session fixation
                        session_regenerate_id(true);
                        $_SESSION['user_id'] = $user['id'];
                        return true;
                    }
                    return false;
                }

                public function logout() {
                    // Unset all session values
                    $_SESSION = [];
                    // Destroy the session
                    session_destroy();
                }
            }
            ?>

In PHP authentication systems, how do I optimize performance?

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In PHP authentication systems, how do I optimize performance?

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