如何使用PHP对数组中的连续月份进行分组？

$monthsArray = array();
foreach ($datesArray as $date) {
    $month = date('Y-m', strtotime($date));
    $monthsArray[] = $month;
}

sort($monthsArray);

$groupedArray = array();
$groupedArray[] = array($monthsArray[0]);
$index = 0;

for ($i = 1; $i < count($monthsArray); $i++) {
    $currentMonth = $monthsArray[$i];
    $previousMonth = $monthsArray[$i - 1];
    $previousMonthTimestamp = strtotime($previousMonth);
    $currentMonthTimestamp = strtotime($currentMonth);

    if (($currentMonthTimestamp - $previousMonthTimestamp) / (30 * 24 * 60 * 60) <= 1) {
        $groupedArray[$index][] = $currentMonth;
    } else {
        $groupedArray[] = array($currentMonth);
        $index++;
    }
}

print_r($groupedArray);