Question

所以，我在两个数组中有一些日期：

$old_1 = array(
    array(
                'start_date' => '2014-09-06',
                'end_date' => ' 2014-09-07'
            ),
            array(
                'start_date' => '2014-09-26',
                'end_date' => '2014-09-28'
            ),
            array(
                'start_date' => '2014-09-29',
                'end_date' => '2014-10-02'
            ),
            array(
                'start_date' => '2014-10-03',
                'end_date' => ' 2014-10-04'
            ),
            array(
                'start_date' => '2014-10-06',
                'end_date' => ' 2014-10-23'
            ),
        array(
                'start_date' => '2014-11-19',
                'end_date' => '2014-11-23'
            ),
            array(
                'start_date' => '2014-11-25',
                'end_date' => ' 2014-11-28'
            )
);

$new_1 = array(
    array(
                'start_date' => '2014-10-03',
                'end_date' => ' 2014-10-04'
            ),
            array(
                'start_date' => '2014-10-10',
                'end_date' => ' 2014-10-12'
            ),
            array(
                'start_date' => '2014-10-17',
                'end_date' => '2014-10-19'
            ),
            array(
                'start_date' => '2014-11-19',
                'end_date' => ' 2014-11-23'
            ),
            array(
                'start_date' => '2014-11-25',
                'end_date' => '2014-11-28'
            )
);

我正在比较数组$ old_1和数组$ new_1，查找日期不在数组$ old_1中。我期待的结果是：

$expected_1 = array(
    array(
            array(
                'start_date' => '2014-10-10',
                'end_date' => ' 2014-10-12'
            ),
            array(
                'start_date' => '2014-10-17',
                'end_date' => '2014-10-19'
            )
);

我使用此功能来执行此操作：

function checkDate($redDate, $date_range)
    {
        $start_object = DateTime::createFromFormat('Y-m-d', $redDate['start_date']);
        $end_object = DateTime::createFromFormat('Y-m-d', $redDate['end_date']);

        if (is_array($date_range)) {
            foreach ($date_range as $key => $row) {
                $range_start = DateTime::createFromFormat('Y-m-d', $row['start_date']);
                $range_end = DateTime::createFromFormat('Y-m-d', $row['end_date']);

                if ($start_object != $range_start && $end_object != $range_end) {
                    if ($start_object < $range_end && $end_object > $range_start) {
                        $date = $redDate;
                    }
                }
            }
        }

        return $date;
    }

$expected = array();
foreach ($new_1 as $dates) {
$value = checkDate($dates, $old_1);
if (!empty($value)) {
$expected[] = $value;
}
}

但是这个功能对这两个数组不起作用：

$old_2 = array(
    array(
                'start_date' => '2014-09-26',
                'end_date' => '2014-09-28'
            ),
            array(
                'start_date' => '2014-10-03',
                'end_date' => ' 2014-10-04'
            )
);
$new_2 = array(
    array(
                'start_date' => '2014-09-26',
                'end_date' => '2014-09-28'
            ),
            array(
                'start_date' => '2014-10-03',
                'end_date' => ' 2014-10-04'
            ),
            array(
                'start_date' => '2014-10-17',
                'end_date' => '2014-10-20'
            ),
            array(
                'start_date' => '2014-10-29',
                'end_date' => ' 2015-01-02'
            )
);

我在期待：

$expected_2 = array(
        array(
                array(
                    'start_date' => '2014-10-17',
                    'end_date' => '2014-10-20'
                ),
                array(
                    'start_date' => '2014-10-29',
                    'end_date' => ' 2015-01-02'
                )
    );

但我得到了空数组：

$result_2 = array(
    );

在比较功能中我会错过什么吗？我需要你的建议，谢谢：）

Answer 1

试试这个checkDate功能：

function checkDate($redDate, $date_range)
    {
        $start_object = DateTime::createFromFormat('Y-m-d', $redDate['start_date']);
        $end_object = DateTime::createFromFormat('Y-m-d', $redDate['end_date']);

        if (is_array($date_range)) {
            foreach ($date_range as $key => $row) {
                $range_start = DateTime::createFromFormat('Y-m-d', $row['start_date']);
                $range_end = DateTime::createFromFormat('Y-m-d', $row['end_date']);

                // if the date was found return a null object
                if ($start_object == $range_start && $end_object == $range_end) {
                    return null;
                }
            }
        }

        // the date was not found so return the date
        return $redDate;
    }

Answer 2

您的示例中的某些日期中有空格。这是一个你应该纠正的错误。

在这里你有内在的痕迹。

2014-09-26 < 2014-10-04 TRUE && 2014-09-28 > 2014-10-03 FALSE
2014-10-03 < 2014-09-28 FALSE && 2014-10-04 > 2014-09-26 TRUE
2014-10-17 < 2014-09-28 FALSE && 2014-10-20 > 2014-09-26 TRUE
2014-10-17 < 2014-10-04 FALSE && 2014-10-20 > 2014-10-03 TRUE
2014-10-29 < 2014-09-28 FALSE && 2015-01-02 > 2014-09-26 TRUE
2014-10-29 < 2014-10-04 FALSE && 2015-01-02 > 2014-10-03 TRUE
array(0) { }

无论如何，我并不确切地知道你在寻找什么。你想要实现什么目标？

比较两个数组之间的日期值

2 个答案: