> Products derived from this software may not be called "PHP", nor may "PHP" appear in their name, without prior written permission from group@xxxxxxx. You may indicate that your software works in conjunction with PHP by saying "Foo for PHP" instead of calling it "PHP Foo" or "phpfoo" I propose removing this clause from the PHP license for GPL compatibility. My proposal is to make PHP a trademark (as Python is), because trademark law is intended to deal exactly with this issue. I'm completely happy with the current license, but I propose this as an improvement.