Removing White Space From Email Submission

[grahamgr3]

I want to create a contact form that has an email field where the user can't enter any white space in the field, for example: test@ex ample.com

I am using a spam scrubbing function taught to us in the book to clean user inputs. 

I am using my variable like so.

$email = strip_tags($scrubbed['email']);

 

how can I add something like this $email = preg_replace('/\s+/', '', $email);

to the existing $email = strip_tags($scrubbed['email']);

 

I tried 

$email = (preg_replace('/\s+/', '', $email)(strip_tags($scrubbed['email'])));

 

and all sorts of variations to that. it doesn't work. 

[Larry]

Personally, I'd just apply the Filter extension. If it passes, it's syntactically valid. I don't see the argument for forcibly removing spaces form a submitted email address.