Sum all "grandchild" values in a multidimensional array to create a flat associative array

Can someone please explain how to obtain the total of the values coming under each of the two outer array elements? I want to end with an array showing the values for each date Nov 18, 2011 and Nov 22, 2011. Here is the array data:

[
    'Nov 18, 2011' => [
        'C' => [
            'T' => 49783.531672,
            'X' => 25013.184
        ],
        'S' => [
            'T' => 32908.863528
        ],
        'I' => [
            'T' => 44561.52
        ]
    ],
    'Nov 22, 2011' => [
        'C' => [
            'T' => -5168.944696
        ],
        'S' => [
            'T' => -3823.890504
        ]
    ]
]

A script would be:

$results = array();
foreach($array as $element){
    $sum = 0;
    foreach($element as $subelement){
        foreach($subelement as $item => $value){
            $sum = $sum + $value;
        }
    }
    array_push($results, $sum);
}

This would give you an array of the sums. You could of course name each if you so desired and so on.

Edit: Got ahead of myself. Edited to me sum, not count