Online PHP editor | output for g10oT

<?php $months = ['June 2016', 'July 2016', 'August 2016']; $results = [ [ ['crate' => 13.51, 'ucount' => 36, 'udate' => '2016-06-30'], ['crate' => 20.51, 'ucount' => 36, 'udate' => '2016-07-30'] ] ]; $defaults = []; foreach ($months as $month) { $defaults[$month] = ['crate' => 0, 'ucount' => 0, 'udate' => $month]; } foreach ($results[0] as $row) { $formatted = date('F Y', strtotime($row['udate'])); // generate date in desired format if (isset($defaults[$formatted])) { $row['udate'] = $formatted; // overwrite the row value $defaults[$formatted] = $row; // overwrite the default row } } var_export(array_values($defaults));