Userforms does a basic str_replace on the content (https://github.com/silverstripe/silverstripe-userforms/blob/master/code/model/UserDefinedForm.php#L385) but a better method would be to use ShortCodes.
http://www.ssbits.com/tutorials/2010/2-4-using-short-codes-to-embed-a-youtube-video/
Posted to: Calling a "command" from within the page content? | Show Thread | Post Reply
