从php中的数组中找到最近的下一个日期

Question

我有这个数组，想找到02/21/2019的下一个最接近的日期，并将其设置为我页面上的下一个日期，任何帮助或想法将不胜感激

 Array
    (
        [0] => 2019-02-17
        [1] => 02/09/2019
        [2] => 02/23/2019
        [3] => 02/18/2019
        [4] => 02/25/2019
        [5] => 03/04/2019
        [6] => 03/11/2019
        [7] => 03/18/2019
        [8] => 03/25/2019
        [9] => 04/01/2019
        [10] => 04/08/2019
    )

Answer 1

这是我用来为我的程序寻找最接近的下一个日期的解决方案，它正在工作。

   $date = '02/21/2019';
   $allDates= array
    (
        '2019-02-17',
        '02/09/2019',
        '02/23/2019',
        '02/18/2019',
        '02/25/2019',
        '03/04/2019',
        '03/11/2019',
        '03/18/2019',
        '03/25/2019',
        '04/01/2019',
         '04/08/2019',
    );    
   function date_sort($a, $b) {
        return strtotime($a) - strtotime($b);
    }
    usort($allDates, "date_sort");
    foreach ($allDates as $count => $dateSingle) {
        if (strtotime($date) < strtotime($dateSingle))  {
            $nextDate = date('m-d', strtotime($dateSingle));
            break;
        }
    }
echo $nextDate;

Answer 2

请参阅此解决方案。 希望这有帮助

<?php 

$search = strtotime('02/21/2019');
$arrValues = array
    (
        '2019-02-17',
        '02/09/2019',
        '02/23/2019',
        '02/18/2019',
        '02/25/2019',
        '03/04/2019',
        '03/11/2019',
        '03/18/2019',
        '03/25/2019',
        '04/01/2019',
         '04/08/2019',
    );

    foreach($arrValues as $val) {


        $newArr[] = strtotime($val);


    }


    function getClosest($search, $arr) {
       $closest = null;
       foreach ($arr as $item) {
        if($search <= $item) {

          if ($closest === null || abs($search - $closest) > abs($item - $search)) {
             $closest = $item;
          }
          }

       }
       return $closest;
    }



    $closest = getClosest($search, $newArr);

    echo date('Y-m-d', $closest);



?>

Answer 3

将日期转换为 unix 时间并比较数字。 我没有测试它，只是一个想法......

按顺序对数组元素进行排序，然后选择最接近您日期的下一个元素（元素）

Answer 4

我假设您可以修复数组的格式并使其相同

$dates = array
                            (
                                '0'=> "2013-02-18",
                                '1'=> "2013-02-12",
                                '2'=> "2013-02-05",
                                '3'=> "2013-01-29",
                                '4'=> "2013-01-27"
                            );


                        $current = date("Y-m-d");
                        //$count = 0;
                        foreach($dates as $day)
                        {
                            //$interval[$count] = abs(strtotime($date) - strtotime($day));
                            $interval[] = abs(strtotime($current) - strtotime($day));
                            //$count++;
                        }                   
                        asort($interval);
                        $closest = key($interval);                       
                        echo trim($datarray[$closest]);