Simple @#%@#% array/function not working....

Hi, Am kind of new to php and brand new to arrays so please excuse me if this is a stupid way of doing things. I have an array and its working fine, but when i try to call a function that checks if the array isset i dont get the required output. Heres the code below: if (is_array($id)) { print "<pre>\$id = "; print_r($id); print "</pre>\n"; } //working fine $result = count ($id); //working fine print($result); //working fine function one() { if(isset($id[0])) return("test=".$id[0]); } echo "<h1>testing".one()."</h1>"; //HERES the problem, this is only printing "testing" instaed of "testing(array value)" Any ideas? Thanks in advance, -Ryan