PHP "echo" Magento Fancybox

I created an attribute called "youtube" (text field only) on magento. In this text field I put youtube video urls like (www.youtube.com/embed/nk_FpiXp-3s) etc...

So my issue is I`m trying to php echo this attribute "youtube" inside my html href code.

 Youtube (iframe)

but it seems to break the page. Also my fancybox script.

Any tips guys ?
It's custom attribute inside of a custom block. The block on product page is working fine so the issue is on php echo.

Thanks!

Sorry for the missing (?>) but it seems to not be working.

Answer

Use the code below

getYoutube(); ?>