connect through firewall

hi, its me again, i tried with fopen() and it seems to almost do the job. except that when i try to view the following php page: <?PHP $fp = fopen("http://www.php.net/","r"); $contents = fread ($fp, 1000); fclose ($fp); print "$contents";?> i get Warning: fopen("http://www.php.net/","r") - Bad file descriptor in d:\www\Apache\htdocs/test.php on line 10 Warning: Supplied argument is not a valid File-Handle resource in d:\www\Apache\htdocs/test.php on line 11 Warning: Supplied argument is not a valid File-Handle resource in d:\www\Apache\htdocs/test.php on line 12 is that becouse i am behind firewall? how can I get it working, behind the firewall dimo