Calculate the number of days in overlapping or non-overlapping date ranges: PHP and Carbon implementation method

Question

How to get the number of days for 2 or more potentially overlapping date ranges (CarbonPeriod)? $startDate_1='2022-12-01';$endDate_1='2022-12-10';$startDate_2='2022-12-06';$endDate_2='2022-12-15';$startDate_3='2022- 12-21';$endDate_3='2022-12-25';$dateRange_1=Ca

P粉475126941 · Answer

You can just merge and deduplicate them.

$startDate_1 = '2022-12-01';
$endDate_1 = '2022-12-10';

$startDate_2 = '2022-12-06';
$endDate_2 = '2022-12-15';

$startDate_3 = '2022-12-21';
$endDate_3 = '2022-12-25';

$dateRange_1 = CarbonPeriod::create($startDate_1, $endDate_1);
$dateRange_2 = CarbonPeriod::create($startDate_2, $endDate_2);
$dateRange_3 = CarbonPeriod::create($startDate_3, $endDate_3);

// 20个日期，只包含没有重复的日期。
$uniqueDays = array_unique(array_merge($dateRange_1->toArray(), $dateRange_2->toArray(), $dateRange_3->toArray()));