DEBUG ACTIVO
URL original: [https://youtu.be/xNUtOPKyohk?si=jSGOH1oMbRnrll4r]
Largo: 48
Array
(
    [scheme] => https
    [host] => youtu.be
    [path] => /xNUtOPKyohk
    [query] => si=jSGOH1oMbRnrll4r
)

Video ID detectado: [xNUtOPKyohk]
Pasa el regex? SI