Online PHP editor | refs for MeAVA

<?php $array = [ ["Plat" => "hello", "Data" => "01/01/2015", "Term" => "PHP", "Quan" => "1"], ["Plat" => "hello", "Data" => "01/01/2015", "Term" => "PHP", "Quan" => "1"], ["Plat" => "hello", "Data" => "03/01/2015", "Term" => "PHP", "Quan" => "1"], ["Plat" => "hello", "Data" => "03/01/2015", "Term" => "PHP", "Quan" => "1"], ["Plat" => "hello", "Data" => "03/01/2015", "Term" => "PHP", "Quan" => "1"], ["Plat" => "hello", "Data" => "03/01/2015", "Term" => "PHP", "Quan" => "1"], ]; foreach ($array as $row) { if (!isset($result[$row['Data']])) { $result[$row['Data']] = $row; } else { $result[$row['Data']]['Quan'] += $row['Quan']; } } $result = array_values($result); var_export($result);