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run code in 300+ PHP versions simultaneously
<?php class Foo { public function bar() { count(func_get_args()); } } $instance = new Foo(); for ($i = 0; $i < 1000; ++$i) { call_user_func_array(array($instance, 'bar'), range(1, 10)); }

preferences:
41.35 ms | 402 KiB | 5 Q