Sort an array of dates using usort() and sort() functions by the timestamp converted by mktime()

Question

I have an array of dates and I have to sort it by using the described functions.

Here is what I have:

$dates = array (\'10-10-2003\', \'2-17-2002\', \'2-         


        

Answer 1

In your date_tim_timestamp function, you are essentially throwing away your date in place of the integer value.

Try this instead:

function date_to_timestamp($d){
    $newarr = array();
    foreach($d as $f) {
        $arr=explode("-",$f);
        //array_push($newarr, mktime(0,0,0,$arr[0],$arr[1],$arr[2]));
        $int_version = mktime(0,0,0,$arr[0],$arr[1],$arr[2]);
        $newarr[$int_version] = $f;
    }
    return $newarr;
}

Using this approach, you wont need to use usort(), just ksort()