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<?php abstract class BaseTest { public function equals($value) { return $value instanceof static; } } class Test extends BaseTest { } class Test2 extends BaseTest { } $a = new Test(); $b = new Test(); $c = new Test2(); var_dump($a->equals($b)); var_dump($a->equals($c)); var_dump($a->equals('ahoj'));
Output for git.master, git.master_jit, rfc.property-hooks
bool(true) bool(false) bool(false)

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