Question

到目前为止我得到了什么：

$dates[] = array("date" => "2016-02-18 02:00:00", "duration" => "600");
$dates[] = array("date" => "2016-02-18 02:05:00", "duration" => "300");
$dates[] = array("date" => "2016-02-18 02:10:00", "duration" => "600");
$dates[] = array("date" => "2016-02-18 02:25:00", "duration" => "300");
$dates[] = array("date" => "2016-02-18 02:30:00", "duration" => "600");

$pickedDates = [];

function findMeetingAlreadyExistsInArray($array, $dateTime){
    foreach($array as $item){
        if ($item["date"] === $dateTime) return true;
    }
}
function closestDate($dateArray, $compareDate, &$pickedDates = array()){
    $dates = [];  
    foreach($dateArray as $key => $originalDate){
        $date = $originalDate['date'];
        if(!findMeetingAlreadyExistsInArray($pickedDates, $date)){
            if(abs(strtotime($compareDate["date"]) - strtotime($date)) >= $compareDate["duration"]){
                $dates[$key] = abs(strtotime($compareDate["date"]) - strtotime($date));
            }
        }
    }
    asort($dates);
    $dateIndex = array_shift(array_keys($dates));
    array_push($pickedDates, $dateArray[$dateIndex]);
    return $dateArray[$dateIndex];
}
foreach($dates as $item) closestDate($dates, $item, $pickedDates);
print_r($pickedDates);

以上功能的结果：

Array
(
    [0] => Array
        (
            [date] => 2016-02-18 02:10:00
            [duration] => 600
        )

    [1] => Array
        (
            [date] => 2016-02-18 02:00:00
            [duration] => 600
        )

    [2] => Array
        (
            [date] => 2016-02-18 02:25:00
            [duration] => 300
        )

    [3] => Array
        (
            [date] => 2016-02-18 02:30:00
            [duration] => 600
        )

    [4] => Array
        (
            [date] => 2016-02-18 02:05:00
            [duration] => 300
        )

)

预期结果：

Array
(
    [0] => Array
        (
            [date] => 2016-02-18 02:00:00
            [duration] => 600
        )
    [1] => Array
        (
            [date] => 2016-02-18 02:10:00
            [duration] => 600
        )
    [2] => Array
        (
            [date] => 2016-02-18 02:25:00
            [duration] => 300
        )
    [3] => Array
        (
            [date] => 2016-02-18 02:30:00
            [duration] => 600
        )
)

Answer 1

这是我的尝试......我改变了很多，只是为了完全按照你想做的事情来解决。

$dates[] = array("date" => "2016-02-18 02:00:00", "duration" => "600"); // 10 mins
$dates[] = array("date" => "2016-02-18 02:05:00", "duration" => "300"); // 5 mins
$dates[] = array("date" => "2016-02-18 02:10:00", "duration" => "600");
$dates[] = array("date" => "2016-02-18 02:25:00", "duration" => "300");
$dates[] = array("date" => "2016-02-18 02:30:00", "duration" => "600");

$pickedDates = [];

function dateExists(array $array, $date) {
    if (empty($array)) {
        return false;
    }

    $flag = false;
    foreach($array as $value) {
        // exact match
        if ($value['date'] == $date) {
            return true;
        }

        // range match
        $start = strtotime($value['date']);
        $end = $start + $value['duration'];
        $ts = strtotime($date);
        if ($ts > $start && $ts < $end) {
            $flag = true;
            break;
        }
    }

    return $flag;
}

foreach ($dates as $key => $date) {
    if (!dateExists($pickedDates, $date['date'])) {
        $pickedDates[$key] = $date;
    }
}

echo '<pre>';
var_dump($pickedDates);
echo '</pre>';

这会产生预期的结果：

array(4) {
  [0]=>
  array(2) {
    ["date"]=>
    string(19) "2016-02-18 02:00:00"
    ["duration"]=>
    string(3) "600"
  }
  [2]=>
  array(2) {
    ["date"]=>
    string(19) "2016-02-18 02:10:00"
    ["duration"]=>
    string(3) "600"
  }
  [3]=>
  array(2) {
    ["date"]=>
    string(19) "2016-02-18 02:25:00"
    ["duration"]=>
    string(3) "300"
  }
  [4]=>
  array(2) {
    ["date"]=>
    string(19) "2016-02-18 02:30:00"
    ["duration"]=>
    string(3) "600"
  }
}

不确定您的closestDate函数是否必须存在并且具有这些确切的参数。无论哪种方式，您都应该能够修改它以满足您的要求。

选择最接近的日期/时间，不会发生任何重叠和重复

1 个答案: