Get ID from videos embedded from YouTube and Vimeo

get-id.php

<?php

function getElementAttribute ($attribute, $html) {
  if (preg_match('/' . $attribute . '="([^"]+)"/', $html, $match)) {
    return $match[1];
  }

  return false;
}

function getVimeoId ($url) {
  if (preg_match('#(?:https?://)?(?:www.)?(?:player.)?vimeo.com/(?:[a-z]*/)*([0-9]{6,11})[?]?.*#', $url, $match)) {
    return $match[1];
  }

  return false;
}

function getYoutubeId ($url) {
  if (preg_match('%(?:youtube(?:-nocookie)?\.com/(?:[^/]+/.+/|(?:v|e(?:mbed)?)/|.*[?&]v=)|youtu\.be/)([^"&?/\s]{11})%i', $url, $match)) {
    return $match[1];
  }

  return false;
}