Online PHP editor | refs for FpeXj

<?php $arr = Array ( 0 => Array ( 0 => 'Red', 1 => 'Steel' ), 1 => Array ( 0 => 'Red', 1 => 'Wood' ) , 2 => Array ( 0 => 'Blue', 1 => 'Wood' ) ); $colors = array_count_values(array_column($arr, 0)); $materials = array_count_values(array_column($arr, 1)); echo "Colors:\n"; foreach($colors as $color => $count){ echo $color . '=>' . $count . "\n"; } echo "Materials:\n"; foreach($materials as $material => $count){ echo $material . '=>' . $count . "\n"; }