how to do a sum on a string in php?

Question

i have a simple question:

i have this var: $v = \"24000,1500,1500,1500,1500,1500,\";

i would like to add those numbers together.

i\'ve

Answer 1

function get_sum()
{
    global $v;
    $temp=0;
    for($i=0;$i