browscap.ini questions

I am a rookie, so I appreciate any help you can give! This is the code fragment from php.net that I am playing with. <?php 3 function list_array ($array) { 4 while (list ($key, $value) = each ($array)) { 5 $str .= "<b>$key:</b> $value<br>\n"; 6 } 7 return $str; 8 } 9 echo "$HTTP_USER_AGENT<hr>\n"; 10 $browser = get_browser(); 11 echo list_array ((array) $browser); 12 ?> The only results I get show what I am sure is the result of line 9. Is this because I don’t have an adequate browscap.ini on my server? Is browscap.ini even used on a Linux server? If so, where is it located? I’m not having any luck finding it. Is there something else I am doing wrong? Thanks, Neana