- var_dump: documentation ( source)
- explode: documentation ( source)
- parse_url: documentation ( source)
<?php
$nomVideo = '';
$extensionVideo='';
list($nomVideo, $extensionVideo) = explode('.', parse_url('https://www.youtube.com/watch?v=YB5JIo12oaA')['path']);
var_dump($nomVideo);
var_dump($extensionVideo);