Username with Inverted Comma

I want to allow nickname like " Dog's Boss". How to add an Inverted Comma '  in preg_match ?

I can't put it directly in preg_match( '/^[a-zA-Z0-9_. &'*-]+$/', $arg0 ), it comes out an error.

It's an Apostrophe

Try escaping it in the preg_match pattern.

preg_match( '/^[a-zA-Z0-9_. &\'*-]+$/', $arg0 )

 It works, Thank you!