Online PHP editor | refs for vVZpi

<?php $missedFridgeLog = [ [ "date" => "01/01/18", "name" => "Medicine" ], [ "date" => "01/01/18", "name" => "Drugs" ], [ "date" => "02/01/18", "name" => "Medicine" ], [ "date" => "02/01/18", "name" => "Drugs" ] ]; $result = []; foreach ($missedFridgeLog as $row) { if (!isset($result[$row['date']])) { $result[$row['date']] = $row; } else { $result[$row['date']]['name'] .= ",{$row['name']}"; } } var_export(array_values($result));