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[Edit] Sum up all the values in the array associatively

Example

// make an associative array
$array = array(1,array(1),array(1,array(1)));

echo array_sum_assoc($array);
// outputs 4, array_sum would output 1
Save 8,501 sum 
function array_sum_assoc($array){
    if(!is_array($array) || sizeof($array) === 0){
        return false;
    }
    $count = 0;
    foreach($array as $key=>$value){
        if(is_array($value)){
            $count += array_sum_assoc($value);
        }else{
            $count += $value;
        }
    }
    return $count;
}