new to programming plz help

[Anon]

I am brand new to programming I am trying to run a program using the array_sum() function this is the message I get.
Is there another way to add up an array?
Or am I doing something wrong?

Fatal error: Call to undefined function: array_sum() in

Other functions seem to work ok.

[brandonschnell]

array_sum() requires php version 4.0.4 or greater.

<?
echo phpversion();
?>

will tell you the php version your host is running.

http://www.php.net/manual/en/function.array-sum.php

[Anon]

Thank You that answered it
My isp is running version 4.0.0