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run code in 300+ PHP versions simultaneously
<?php interface A { const D = 12; public static function test(array $a); } class B implements A { const D = 15; public static function test(array $a){ return self::D; } } var_dump(B::test(array()), A::D, B::D);

preferences:
32.78 ms | 402 KiB | 5 Q