if (!$user) die("User not found.");
if ($uid <= 0) die("Invalid user ID.");
https://web.symbol.rs/forum/member-898087 if (!$user) die("User not found.")
Since you asked for a "complete feature," here are the likely functionalities associated with this URL pattern: The primary function of action=profile&uid=898087 is to display a forum member's public information page. if ($uid <
switch ($action) case 'profile': // Display profile page include 'templates/profile_view.php'; break; = 0) die("Invalid user ID.")