Online PHP editor | refs for HPnPA

<?php function awesome(...$arrays) { if (!is_array($arrays)) return false; $merged = array_shift($arrays); foreach($arrays as $array) { foreach($array as $k => $v) { $merged[(string)$k] = $v; } } return $merged; } $array1 = array('A', 'B', 'C'); $array2 = array('B', 'C', 'D'); print_r($array1 + $array2); print_r(array_merge($array1, $array2)); print_r(awesome($array1, $array2));