phparrayssortingchronological

Sort an array of 3-letter month names chronologically

Is there a way I can sort the following array into the correct chronological order?

Array
(
    [0] => apr
    [1] => aug
    [2] => dec
    [3] => feb
    [4] => jan
    [5] => jul
    [6] => jun
    [7] => mar
    [8] => may
    [9] => nov
    [10] => oct
    [11] => sep
)

NOTE The array comes to me like this, and sometimes it will not have all the months.

Solution 
  • function sort_months($item_1, $item_2)
{
    $item_1 = strtotime('1 ' . $item_1 . ' 2000');
    $item_2 = strtotime('1 ' . $item_2 . ' 2000');
    if($item_1 == $item_2)
    {
        return 0;
    }
    return $item_1 > $item_2 ? 1 : -1;
}

$arr = array
(
    'apr',
    'aug',
    'dec',
    'feb',
    'jan',
    'jul',
    'jun',
    'mar',
    'may',
    'nov',
    'oct',
    'sep'
);

usort($arr, 'sort_months');