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<?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"; }
Output for git.master, git.master_jit, rfc.property-hooks
Colors: Red=>2 Blue=>1 Materials: Steel=>1 Wood=>2

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