Как сортировать ассоциативный массив?

Question

[Давид Манжула]

Есть массив такой структуры

Array
(
    [0] => Array
        (
            [Date] => 2015-11-04
            [Time] => 18:07:00
            [LastEdit] => 00:00:00
            [Class] => 31
            [Student] => vikakozun
            [Teacher] => dersm
            [Mark] => 7
            [Info] => ахахахахах
        )

    [1] => Array
        (
            [Date] => 2015-11-04
            [Time] => 18:07:00
            [LastEdit] => 00:00:00
            [Class] => 31
            [Student] => da411d
            [Teacher] => dersm
            [Mark] => 12
            [Info] => -
        )

    [2] => Array
        (
            [Date] => 2015-11-04
            [Time] => 18:07:00
            [LastEdit] => 00:00:00
            [Class] => 31
            [Student] => da411d
            [Teacher] => dersm
            [Mark] => 12
            [Info] => 
        )

    [3] => Array
        (
            [Date] => 2015-11-04
            [Time] => 18:07:00
            [LastEdit] => 00:00:00
            [Class] => 31
            [Student] => da411d
            [Teacher] => dersm
            [Mark] => 12
            [Info] => 
        )

    [4] => Array
        (
            [Date] => 2015-11-04
            [Time] => 18:07:00
            [LastEdit] => 00:00:00
            [Class] => 31
            [Student] => vikakozun
            [Teacher] => dersm
            [Mark] => 1
            [Info] => rgersdgvs
        )
)

Как отсортировать его по дате?

Answer 1

[Andrzej Wielski]

usort($array, function($a, $b){
    $t1 = strtotime($a['Date'].' '.$a['Time']);
    $t2 = strtotime($b['Date'].' '.$b['Time']);
    return $t1 - $t2;
});

В вашем случае - так.

Answer 2

[riot26]

Копать в сторону usort()

Answer 3

[Александр N++]

через usort + своя функция