Online PHP editor | output for 1Ymh7

<?php $qp = [ ['Nsd_id' => "1@2@3@4@5", 'Nsd_amount' => "0@0@0@20000@0"], ['Nsd_id' => "1@2@3@4@5", 'Nsd_amount' => "0@0@12000@0@0"], ['Nsd_id' => "1@2@3@4@5", 'Nsd_amount' => "0@0@0@10000@0"], ['Nsd_id' => "1@2@3@4@5", 'Nsd_amount' => "0@0@10000@0@0"], ['Nsd_id' => "1@2@3@4@5@12", 'Nsd_amount' => "0@0@10000@0@0@1000"], ['Nsd_id' => "1@2@3@4@5@12@14@15", 'Nsd_amount' => "0@0@8000@0@0@0@0@0"], ['Nsd_id' => "1@2@3@4@5@12@14@15", 'Nsd_amount' => "0@0@0@0@0@0@13000@0"], ['Nsd_id' => "1@2@3@4@5@12@14@15", 'Nsd_amount' => "0@2500@0@3900@0@0@20000@0"], ['Nsd_id' => "1@2@3@4@5@12@14@15", 'Nsd_amount' => "0@0@5000@0@0@0@0@0"], ['Nsd_id' => "1@2@3@4@5@12@14@15", 'Nsd_amount' => "0@0@5000@0@0@1000@0@0"], ['Nsd_id' => "1@2@3@4@5@12@14@15", 'Nsd_amount' => "0@0@2000@0@0@500@0@0"], ['Nsd_id' => "1@2@3@4@5@12@14@15", 'Nsd_amount' => "0@0@0@0@0@0@4000@0"], ]; $nsdIds = []; $result = []; foreach ($qp as $key => $value) { // exploding Nsd_ids $nsdTemp = explode("@", $value['Nsd_id']); // exploding nsd_amounts $nsdAmount = explode("@", $value['Nsd_amount']); // saving all new nsd ids and only keep unique nsd ids $nsdIds = array_unique(array_merge($nsdIds, $nsdTemp)); // I am now combining keeping nsd id as key and nsd amount as its value $temp1 = array_combine($nsdTemp, $nsdAmount); foreach ($nsdIds as $value1) { // for latest php version // $temp1 contains keys of nsd ids // value1 contains nsdids we are sure that it will be in nsdids as we are already merging those ids // then fetching amounf for that nsdids //$result[$value1] = ($result[$value1] ?? 0) + $temp1[$value1]; // for php version less than 7 $result[$value1] = (!empty($result[$value1]) ? $result[$value1] : 0) + (!empty($temp1[$value1]) ? $temp1[$value1] : 0); } } print_r($result);die;