php - 如何通过碳获取日期范围内的所有星期五

Question

我使用此函数来获取两个日期之间的所有星期五:

public function getFridaysInRange($dateFromString, $dateToString)
{
    $dateFrom = new \DateTime($dateFromString);
    $dateTo = new \DateTime($dateToString);
    $dates = [];

    if ($dateFrom > $dateTo) {
        return $dates;
    }

    if (1 != $dateFrom->format('N')) {
        $dateFrom->modify('next friday');
    }

    while ($dateFrom <= $dateTo) {
        $dates[] = $dateFrom->format('Y-m-d');
        $dateFrom->modify('+1 week');
    }

    return $dates;
}

$this->getFridaysInRange('2017-01-01','2017-01-30');

结果:

array:4 [▼
  0 => "2017-01-06"
  1 => "2017-01-13"
  2 => "2017-01-20"
  3 => "2017-01-27"
]

carbon中有像上面这样的函数吗？

Answer 1

您可以像这样使用 Carbon 的所有功能:

$fridays = [];
$startDate = Carbon::parse($fromDate)->next(Carbon::FRIDAY); // Get the first friday.
$endDate = Carbon::parse($toDate);

for ($date = $startDate; $date->lte($endDate); $date->addWeek()) {
    $fridays[] = $date->format('Y-m-d');
}