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

$v = "24000,1500,1500,1500,1500,1500,";
$result = 0;
foreach(explode(',',$v) as $val)
     $result +=intval($val);

echo $result;///31500