youtube video downloader in php

main.php
// video ID of the YouTube video to download
$video_id = 'insert_youtube_video_id_here';

// create a cURL handle
$ch = curl_init();
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

// set the YouTube API URL with video ID
$url = "https://www.youtube.com/get_video_info?video_id=$video_id";

// set the cURL options
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);

// execute the cURL request and retrieve video info
$result = curl_exec($ch);
parse_str($result, $video_info);

// retrieve the video title and download URL
$title = $video_info['title'];
$download_url = urldecode($video_info['url_encoded_fmt_stream_map']);
$download_url = explode(',', $download_url)[0];
$download_url = str_replace('url=', '', $download_url);

// set the file name to the video title
$filename = "$title.mp4";

// download the video using cURL
$fp = fopen($filename, 'wb');
curl_setopt($ch, CURLOPT_URL, $download_url);
curl_setopt($ch, CURLOPT_FILE, $fp);
curl_exec($ch);
curl_close($ch);
fclose($fp);
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