​​有关使用情况下，我会亲自使用 array_filter ：

For the use case described, I would personally use array_filter:

$start_date = DateTime::createFromFormat('Y-m-d', '2014-05-14');
$end_date = DateTime::createFromFormat('Y-m-d', '2014-06-14');

$filtered_array = array_filter($array, function($row) use ($start_date, $end_date) {
                      $date = DateTime::createFromFormat('Y-m-d', $row[5]);
                      return $date >= $start_date && $date <= $end_date;
                  });