Online PHP editor | refs for S0shX

<?php $trucks = ['Serial' => 12345, 'Wheels' => 4, 'Color' => 'Black']; $trailers = ['Serial' =>4321, 'Length'=>42]; $forklifts = ['Serial' =>5678, 'ForkLength'=>24]; $columns = array_keys(array_merge($trucks, $trailers, $forklifts)); $template = array_fill_keys($columns, null); foreach ([$trucks, $trailers, $forklifts] as $array) { $result[] = array_merge($template, $array); } var_dump($result);