<?php
function redirect_to_youtube_app($video_id) {
    if (!$video_id) {
        die("Geçersiz veya eksik video ID.");
    }

    $app_link = "vnd.youtube://" . $video_id;
    header("Location: $app_link");
    exit;
}
$requested_url = $_SERVER['REQUEST_URI'];
$video_id = ltrim($requested_url, '/'); 
redirect_to_youtube_app($video_id);
?>