我怎样才能说服Netbeans像.php文件那样处理.phpclass文件?

I use Netbeans 7.3 (on Windows 7) at my job for PHP development. Some of the PHP classes are found in files named something like MyClass.phpclass. Apparently, Netbeans doesn't consider them to be actual PHP files, so all editor features are disabled: syntax highlighting, autocomplete etc.

Is there some way I can convince Netbeans that .phpclass files are just like .php files ? Obviously, renaming the files is out of the question because everyone uses the same code (100+ people).

I tried finding something about this in Tools -> Options -> Editor, but with no luck.

Go to Tools -> Options -> Miscellaneous -> Files

-create a phpclass extension

-associate with mime text/php-5

-click OK

you're done!