Online PHP editor | output for beega

<?php $reserved_dates = array( '2023-12-03', '2023-12-10', '2023-12-17', '2023-12-24', '2023-12-31', '2024-01-07', '2024-01-14', '2024-01-21', '2024-01-28', '2024-02-04', '2024-02-11', '2024-02-18', '2024-02-25', '2024-12-01', '2023-12-03', '2024-12-08', '2024-12-15', ); $data = []; foreach($reserved_dates as $d){ list($year, $month) = explode("-", $d); $data[ $year ]['year'] = $year; $data[ $year ]['months'][ $month ] = $data[ $year ]['months'][ $month ] ?? []; $data[ $year ]['months'][ $month ]['monthName'] = date("F", strtotime($d)); $data[ $year ]['months'][ $month ]['paid'] = true; // or false whatever $data[ $year ]['months'][ $month ]['dates'] = $data[ $year ]['months'][ $month ]['dates'] ?? []; $data[ $year ]['months'][ $month ]['dates'][] = $d; } foreach($data as &$months){ foreach($months['months'] as &$each_month){ usort($each_month['dates'], fn($a, $b) => DateTime::createFromFormat('!Y-m-d', $a) <=> DateTime::createFromFormat('!Y-m-d', $b)); } $months['months'] = array_values($months['months']); } $data = array_values($data); print_r($data);