php - 如何在PHP中减去两个没有星期日的日期

Question

我想用 php 或 cakephp 函数减去日期， 示例:

$date1 = '2016-05-19';
$date2 = '2016-05-23';

我想要减去没有星期日的日期，从示例中我想要的结果是 3，而不是 4，因为 4 - 1(星期日)，

我已经尝试使用新的 Datetime php，如这段代码，

$receipt_date   = new DateTime($air_way_bill['AirWayBill']['receive_date']);
$date           = new DateTime($air_way_bill['AirWayBill']['date']);
$difference     = $receipt_date->diff($date);

但结果是 4，我如何在该范围内减去星期日？ 有什么步骤或方法可以实现我的意思吗？

提前致谢...

[结案]:

正确答案:

// ============================= 1 ==================== //

$receipt_date   = new DateTime('2016-05-19');
$date           = new DateTime('2016-05-23');
$difference     = $receipt_date->diff($date);

$daterange = new DatePeriod($receipt_date, new DateInterval('P1D'), $date);

$count = 0;

foreach($daterange as $date){
    if(!($date->format("w"))) {
        $count++;
    }
}

echo ($difference->days)-$count;

//=============================================== ===//

// ============================= 2 ==================== //

function getSubtrackedDayCountWithoutSundaysButWithAllOtherDaysUsingDateTimeFunctions($startDate, $endDate)
{
    $days = $startDate->diff($endDate, true)->days;
    $sundays = intval($days / 7) + ($startDate->format('N') + $days % 7 >= 7);

    return intval($days)-Sundays;

}

//=============================================== ===========//

//===================== 这是我的实验 ===============//

        $date = date('Y-m-d', strtotime($air_way_bill['AirWayBill']['date']));
        $receive_date = date('Y-m-d', strtotime($air_way_bill['AirWayBill']['receive_date']));

        $date_diff = round(abs(strtotime($receive_date) - strtotime($date)) / 86400);
        $weeks  = round(abs(strtotime($receive_date) - strtotime($date)) / (86400 * 7));

         echo $date_diff - $weeks;

//=============================================== ===========//

非常感谢...

Answer 1

您可以查找总天数，然后查找该范围内的周日数。最后从总天数中减少这些天数:

<?php    
$receipt_date   = new DateTime('2016-05-19');
$date           = new DateTime('2016-05-23');
$difference     = $receipt_date->diff($date);

$daterange = new DatePeriod($receipt_date, new DateInterval('P1D'), $date);

$count = 0;

foreach($daterange as $date){
    if(!($date->format("w"))) {
        $count++;
    }
}

echo ($difference->days)-$count;

Demo