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<?php // Data $name = ['Mazda','Mazda','Lexus', 'Lexus']; $count = [1,1,1,1]; $gp =[54,35,23,46]; // declare result array $result = []; for($i = 0; $i < count($name); $i++) { $result[ $name[$i] ] = [ "C" => ($result[ $name[$i] ]['C'] ?? 0) + $count[$i], "GP" => ($result[ $name[$i] ]['GP'] ?? 0) + $gp[$i] ]; } print_r($result);

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