3v4l.org

run code in 300+ PHP versions simultaneously
<?php $args = array( "A" => [], "B" => [], "C" => [], "D" => [], "E" => [], "F" => [], "G" => [], "H" => [] ); if(empty(array_merge(... array_values($args)))) echo "Given Array is empty"; else echo "Given Array is not empty";

preferences:
27.31 ms | 405 KiB | 5 Q