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<?php class a { const A_1 = 1; const A_2 = 2; public function test() { $refl = new ReflectionClass($this); var_dump($refl->getConstants()); } } class ab extends a { const B_1 = 'b1'; } $a = new a(); $a->test(); $b = new ab(); $b->test();
Output for git.master, git.master_jit, rfc.property-hooks
array(2) { ["A_1"]=> int(1) ["A_2"]=> int(2) } array(3) { ["B_1"]=> string(2) "b1" ["A_1"]=> int(1) ["A_2"]=> int(2) }

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