How to sort a array of dates in PHP

Question

I have an array of date like

    a[0]=>2013-10-05
    a[1]=>2013-10-25
    a[2]=>2013-10-15
    a[3]=>2013-10-28

I want to sort in ascending order. How can i sort this?

PHP has many functions for sorting arrays, see php.net/manual/en/array.sorting.php Have you tried them? For example what did asort() return and why that did not match your expectations? — Harri
– Harri, Commented Oct 29, 2013 at 6:18

BKM · Accepted Answer · 2013-10-29 06:19:39Z

2

Try this;

$orderByDate = $my2 = array();
foreach($data as $key=>$row)
{
    $my2 = explode('-',$row[1]);
    $my_date2 = $my2[1].'-'.$my2[0].'-'.$my2[2];        
    $orderByDate[$key] = strtotime($my_date2);  
}    
array_multisort($orderByDate, SORT_ASC, $data);

answered Oct 29, 2013 at 6:19

BKM

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Community · Accepted Answer · 2017-05-23 10:27:15Z

1

Try the default sort function as stated here: Sort by Date

Or use a custom sort function like suggested here: Custom Search Function

function sortFunction( $a, $b ) 
{
    //$a and $b are two values from your array
    //Return a value > 0 then $a is greater than $b
    return strtotime($a) - strtotime($b);
}
usort($data, "sortFunction");

edited May 23, 2017 at 10:27

CommunityBot

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answered Oct 29, 2013 at 6:22

SpazzMarticus

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