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<?php class A { const MA_CONST = 1; public function get1() { return self::MA_CONST; } public function get2() { return static::MA_CONST; } } class B extends A { const MA_CONST = 2; } $o = new B(); var_dump($o->get1()); var_dump($o->get2()); var_dump(B::MA_CONST);

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