Is an E_STRICT warning when overwriting a static method with a different parameter list desired?

Hi, I was wondering if an E_STRICT error is desired when a static method is overwritten with a other parameter list. The error I'am getting is: "Strict Standards: Declaration of Sub::doSomething() should be compatible with that of Base::doSomething()" When I run this code: --------------------------------------------------------------------------- class Base { public static function doSomething($something) { echo $something; } } class Sub extends Base { public static function doSomething() { parent::doSomething('anything'); } } But why? Aren't interfaces supposed to handle this? NOTE: Be sure to have E_STRICT enabled in the ini or a file including this one. E_STRICT errors are not reported in the file where error_reporting is used to set E_STRICT. (personal experience :P )