PHP sort multidimensional array by date

Question

I\'m having a problem. I have a multidimensional array, that looks like this:

Array ( [0] => 
              Array ( 
                    [0] => Testguy         


        

Answer 1

I'm just stepping away from my desk for the day so I can't offer specifics. But here's a good place to get started that includes examples: array_multisort

Answer 2

$dates = array();       
foreach($a AS $val){
    $dates[] = strtotime($val[2]);
}
array_multisort($dates, SORT_ASC, $a);

Answer 3

function cmp($a, $b){

    $a = strtotime($a[2]);
    $b = strtotime($b[2]);

    if ($a == $b) {
        return 0;
    }
    return ($a < $b) ? -1 : 1;
}

usort($array, "cmp");

Or for >= PHP 7

usort($array, function($a, $b){
    return strtotime($a[2]) <=> strtotime($b[2]);
});

Answer 4

You can do it using usort with a Closure :

usort($array, function($a, $b) {
    $a = strtotime($a[2]);
    $b = strtotime($b[2]);
    return (($a == $b) ? (0) : (($a > $b) ? (1) : (-1)));
});