I have the same requirement, but the closest thing I could get is to use the Live Templates feature. Basically I added a new Template under the PHP Group with the abbreviation copyright and the following text
/**************************************************************************
* Copyright (C) $user$, Inc - All Rights Reserved
*
* <omitted copyright blah>
*
* @file $file$
* @author $user$
* @site <my website>
* @date $date$
*/
Unfortunately it seems impossible to use Template Variables such as ${NAME} in the context of a Live Template, so you are forced to stick with the provided expressions. In this case I used fileName(), user() and date() which were enough for my case.
Finally you can type copyright and press Tab to generate the header.