Check to see if the video still exists on YouTube – Check Valid YouTube ID

Below is an example code and a functions in php to check if youtube video is still valid:

<?php
/**
 * Check Valid YouTube ID: Check_YT_ID, Check_Youtube_Video functions
 *
 * PHP version 5.3+
 *
 * Licensed under The MIT License.
 * Redistribution of these files must retain the above copyright notice.
 *
 * @author    Emilian Robert Vicol <byrev[*]yahoo.com>
 * @copyright Copyright 2020+ Emilian Robert Vicol
 * @license   https://opensource.org/licenses/mit-license.html
 * @link      https://robertvicol.com/
 * @version   1.0
 */

# ~~~~ Function to Check only ID 
function Check_Youtube_ID($id) {
  $url = "https://i.ytimg.com/vi/" . $id . "/mqdefault.jpg";		
  $ch = curl_init();
  curl_setopt($ch, CURLOPT_URL, $url);
  curl_setopt($ch, CURLOPT_NOBODY, true);
  curl_exec($ch);
  $response_code = (int)curl_getinfo($ch, CURLINFO_HTTP_CODE); 
  curl_close($ch);	
  return ($response_code ==  200);
}

# ~~~~ Function to Check Youtube URL or ID 
function Check_Youtube_Video($yturl) {
  if (strlen($yturl) < 12) { return Check_Youtube_ID($yturl); }

  $preg1 = '@youtube.com\/watch\?v=(.*?)$@';
  if ( preg_match($preg1, $yturl, $match) ) {
    $id = explode("&",$match[1]);
    return Check_Youtube_ID($id[0]);
  }
}

$id = 'F7TsM5x1idg';

if (Check_Youtube_ID($id))
  echo "TRUE,";
else
  echo "FALSE,";

if (Check_Youtube_Video("https://youtube.com/watch?v=F7TsM5x1idg"))
  echo "TRUE,";
else
  echo "FALSE,";


if (Check_Youtube_Video($id))
  echo "TRUE,";
else
  echo "FALSE,";

• https://www.youtube.com/watch?v=[ID]&feature=…&…
• https://www.youtube.com/watch?v=[ID]
• www.youtube.com/watch?v=[ID]
• youtube.com/watch?v=[ID]
• https://www.youtube.com/v/[ID]
• www.youtube.com/v/[ID]
• youtube.com/v/[ID]
• [ID]
• …. and any valid youtube video url