Reorganize array by date

Question

I'm trying to reorganize my array orderned by date.

For example this is my array:

Array(
      [0] => august 
      [1] => july 
      [2] => october 
      [3] => september
)

How can i reorganize it chronologically, so it would become this:

Array(
      [0] => july 
      [1] => august 
      [2] => september 
      [3] => october
)

Thanks, i couldn't find this – João Rafael Aug 19 '13 at 11:47 — João Rafael, Aug 19 '13 at 11:47

score 1 · Accepted Answer · edited May 23 '17 at 12:20

1

Use date_parse to parse the month name and convert it to the corresponding number and then use ksort to sort them.

$myArray = array('august', 'july', 'october', 'september');
foreach($myArray as $value) {
    $m = date_parse($value);
    $output[$m['month']] = ucfirst($value);
}
ksort($output);
print_r($output);

Output:

Array
(
    [7] => July
    [8] => August
    [9] => September
    [10] => October
)

^{Source: #12424968}

Demo!

edited May 23 '17 at 12:20

Community

1
1

answered Aug 19 '13 at 11:55

Amal Murali

75,622
18
128
150

It's returning only September, the months are in pt-br, is this a problem? – João Rafael Aug 19 '13 at 12:31
@JoãoRafael: It works with any formatted accepted by [`strtotime()`](http://php.net/manual/en/function.strtotime.php) – Amal Murali Aug 19 '13 at 13:22

Nils · Answer 2 · 2013-08-19T12:58:40.383

1

This should work for any date that strtotime can parse

function cmp($a, $b) 
{
    $a_time = strtotime($a);
    $b_time = strtotime($b);
    if ($a_time == $b_time) {
        return 0;
    }
    return ($a_time < $b_time) ? -1 : 1;    
}


// Array to be sorted
$array = array('november', 'august', 'december', 'february');
print_r($array);

// Sort and print the resulting array
usort($array, 'cmp');
print_r($array);

Output:

Array
(
    [0] => november
    [1] => august
    [2] => december
    [3] => february
)
Array
(
    [0] => february
    [1] => august
    [2] => november
    [3] => december
)

edited Aug 19 '13 at 12:58

answered Aug 19 '13 at 12:00

Nils

436
2
5

they are not in order – João Rafael Aug 19 '13 at 12:31
Thanks, changed from uasort to usort – Nils Aug 19 '13 at 12:59

Reorganize array by date

2 Answers2