prepare("SELECT id, username FROM users WHERE id != ?"); $stmt->execute([$_SESSION['user_id']]); $users = $stmt->fetchAll(); ?>

Chat

Users
Chat with prepare("SELECT username FROM users WHERE id = ?"); $stmt->execute([$_GET['user_id']]); $chat_user = $stmt->fetch(); echo htmlspecialchars($chat_user['username']); } else { echo '...'; } ?>

Select a user to start chatting.