- var_dump: documentation ( source)
- preg_match: documentation ( source)
<?php
function um_youtube_id_from_url($url) {
$pattern =
'%^# Match any youtube URL
(?:https?://)? # Optional scheme. Either http or https
(?:www\.)? # Optional www subdomain
(?: # Group host alternatives
youtu\.be/ # Either youtu.be,
| youtube\.com # or youtube.com
(?: # Group path alternatives
/embed/ # Either /embed/
| /v/ # or /v/
| /watch\?v= # or /watch\?v=
) # End path alternatives.
) # End host alternatives.
([\w-]{10,12}) # Allow 10-12 for 11 char youtube id.
$%x'
;
$result = preg_match($pattern, $url, $matches);
if (false !== $result) {
return $matches[1];
}
return false;
}
var_dump(um_youtube_id_from_url('<a href="https://www.youtube.com/watch?v=1aaXl4vaeJU">https://www.youtube.com/watch?v=1aaXl4vaeJU</a>'));
var_dump(um_youtube_id_from_url("https://www.youtube.com/watch?v=1aaXl4vaeJU"));
var_dump(um_youtube_id_from_url("https://www.youtube.com/v/1aaXl4vaeJU"));