Get distinct sum from an php array

I have an array like this:

Array
(
    [0] => Array
        (
            [url_id] => 1
            [time_spent] => 41
        )

    [1] => Array
        (
            [url_id] => 2
            [time_spent] => 25
        )
    [2] => Array
        (
            [url_id] => 1
            [time_spent] =>开发者_StackOverflow中文版 41
        )
)

So, how to get the 'distinct' of time_spent and also the 'sum' of the time_spent.

Thanks.

---

You can try:

$result = array_unique($input_array);
var_dump(array_sum($result['time_spent']));

Docs:

• array_unique
• array_sum

---

Try this:

$sum = 0;
$timeSpent = array();
foreach($myArray as $element) {
    $timeSpent[] = $element['time_spent'];
    $sum += $element['time_spent'];
}

To have:

1. $sum => The sum of all time_spent
2. $time_spent => An array of all time spent (whitout URL)

---

$ts = array_map(function ($a) {return $a['time_spent'];}, $arr);  //get array of time_spent's
$sum = array_sum($ts); //sum
$distinct = array_unique($ts); //distincts

One-liner for sum of distinct values

$ans = array_sum(array_unique(array_map(function ($a) {return $a['time_spent'];}, $arr)));

http://us3.php.net/manual/en/ref.array.php