PHP天差计算错误

Question

我有一些 PHP 代码来计算两个特定日期之间的天数。差异不应计入星期日和星期六。另外，我有一组日期，其中包括假期，也需要跳过。

我将开始日期设为 01-05-2015，将结束日期设为 01-06-2015。我把 5 月份的所有日子都作为数组给出。因此，差异应为 1 天。但我得到的输出为 7。问题是什么？这是代码。

function dateRange($first, $last) {
    $dates = array();
    $current = strtotime($first);
    $now = $current;
    $last = strtotime($last);
    while( $current <= $last ) {
        if (date('w', $current) != 0){
            $dates[] = date('d-m-Y', $current);
        }
        $current = strtotime('+1 day', $current);
    }
    unset($dates[0]);
    return $dates;
}


$datea = "01-05-2015";
$date = "01-06-2015";
$hdsarray = array("1-05-2015","2-05-2015","4-05-2015","5-05-2015","7-05-2015","8-05-2015","9-05-2015","11-05-2015","12-05-2015","14-05-2015","15-05-2015","16-05-2015","18-05-2015","19-05-2015","21-05-2015","22-05-2015","23-05-2015","25-05-2015","26-05-2015","28-05-2015","29-05-2015","30-05-2015");

$datesarray = dateRange($datea, $date);
$result = array_diff($hdsarray,$datesarray);
$date_diff = sizeof($result);

echo $date_diff;

Answer 1

我能看到的唯一问题是 array_diff 的使用，它实际上包括被 dateRange 函数排除的星期六和星期日，如果在假期列表中找不到的话.

相反，您可以在 dateRange 函数中传递您的假期日期，并在那里进行过滤。

function dateRange($first, $last, $excludeDates) {
    $dates = array();
    $current = strtotime($first);
    $now = $current;
    $last = strtotime($last);
    while( $current <= $last ) {
        if (date('w', $current) != 0 && date('w', $current) != 6 && !in_array(date('j-m-Y', $current), $excludeDates)){
            $dates[] = date('d-m-Y', $current);
        }
        $current = strtotime('+1 day', $current);
    }
    return $dates;
}

$datea = "01-05-2015";
$date = "01-06-2015";
$hdsarray = array("1-05-2015","2-05-2015","4-05-2015","5-05-2015","7-05-2015","8-05-2015","9-05-2015","11-05-2015","12-05-2015","14-05-2015","15-05-2015","16-05-2015","18-05-2015","19-05-2015","21-05-2015","22-05-2015","23-05-2015","25-05-2015","26-05-2015","28-05-2015","29-05-2015","30-05-2015");
$datesarray = dateRange($datea, $date, $hdsarray);print_r($datesarray);

结果:

Array
(
    [0] => 06-05-2015
    [1] => 13-05-2015
    [2] => 20-05-2015
    [3] => 27-05-2015
    [4] => 01-06-2015
)

所有 5 个日期都出现在结果中，不包括星期六、星期日和假期列表。