Online PHP editor | output for TfZlr

<?php $existingRanges = [ ['start_date' => '2023-11-22', 'end_date' => '2023-11-30', 'price' => 200], ['start_date' => '2023-12-10', 'end_date' => '2023-12-14', 'price' => 100], ['start_date' => '2023-12-15', 'end_date' => '2023-12-20', 'price' => 100], ['start_date' => '2023-12-21', 'end_date' => '2023-12-27', 'price' => 100], ['start_date' => '2024-01-05', 'end_date' => '2024-01-05', 'price' => 600], ['start_date' => '2024-01-06', 'end_date' => '2024-01-07', 'price' => 700], ['start_date' => '2024-01-08', 'end_date' => '2024-01-20', 'price' => 700], ['start_date' => '2024-01-21', 'end_date' => '2024-01-31', 'price' => 100], ]; function mergeDateRanges($p_arrDateranges) { $finalArray = []; $arrLastDR = null; foreach ($p_arrDateranges as $arrDR) { if ($arrLastDR === null) { $arrLastDR = $arrDR; continue; } $endDate = DateTime::createFromFormat('Y-m-d', $arrLastDR['end_date']); $sLastDateE_1 = $endDate->modify('+1 day')->format('Y-m-d'); if (strtotime($arrDR['start_date']) == strtotime($sLastDateE_1) && $arrDR['price'] == $arrLastDR['price']) { $arrLastDR['end_date'] = $arrDR['end_date']; }else{ array_push($finalArray, $arrLastDR); $arrLastDR = $arrDR; } } if($arrLastDR !== null){ array_push($finalArray, $arrLastDR); } return $finalArray; } print_r(mergeDateRanges($existingRanges));