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run code in 200+ php & hhvm versions
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<?php interface B { static function foo(); } abstract class A implements B { } var_dump(is_callable('A::foo'));
Output for 5.6.15 - 5.6.30, hhvm-3.18.5 - 3.22.0, 7.0.30 - 7.3.0alpha1
bool(false)