Assign a badge via PHP code

Hi... Is there a line (or few lines) of PHP code which will assign a badge to a person (and ideally - but not essentially get it on the activity stream too)?

I know the badge ID and I know the User ID.

I know I can assign it manually in the back-end of EasySocial - but I have a form (using a 3rd Party Component) that people are completing and when they have I want to have a badge auto-assigned.

Thanks for any help you can give here.