explode() Does it work for PHP3

[Anon]

I'v been try to use explode() to no luck is this function valid for php3 or is it a php4 function
heres the code this should work...

<? // get sub total form $total
$gtotal = explode(" ","$total");
reset ($gtotal);
while (list(, $s_total) = each ($gtotal)) {
$sum += $s_total;
}
echo $sum;
?>
This can't be that hard to do

TIA
Richie TM

[Anon]

http://www.php.net/manual/en/function.explode.php has your answer.