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<?php $array = Array ( 0 => Array ( 0 => Array ( 0 => 'R421_FD03', 1 => 1 ), 1 => Array ( 0 => 'R421_FD03', 1 => 1 ) ), 1 => Array ( 0 => Array ( 0 => 'R421_FD03', 1 => 1 ), 1 => Array ( 0 => 'R421_FD02', 1 => 1 ) ) ); $final_array = []; foreach($array as $arr){ foreach($arr as $ar){ $final_array[$ar[0]][0] = $ar[0]; $final_array[$ar[0]][1] = (isset($final_array[$ar[0]][1])) ? $final_array[$ar[0]][1] + $ar[1] : $ar[1]; } } $final_array = array_values($final_array); print_r($final_array);

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