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<?php // Internal declaration namespace Test { class Foo { public static function bar() { return 'static'; } } } // Internal Usage namespace Controller { use Test\Foo; class SomeController { public function view() { echo Foo::bar(); } } } // Some extending application class MyFoo extends Foo { public static function bar() { return 'can\'t make internal methods use this.'; } } $c = new Controller\SomeController; $c->view();