Issues with socket connections using fread/fgets on Linux

I'm running PHP4.0.1pl2 off RedHat Linux. I'm trying to connect to a server via socket using pfsockopen and then sending data with fwrite/fputs. There seems to be no problem sending data out, but when it comes to trying to retrieve data back from the socket via fread/fgets, the script just stalls there. Has anyone faced a similar issue ? I've tried a simple script below just to test whether it works from the server, but seems to fail, although it works on IIS(Win32 ). $fp = fsockopen("www.php.net", 80, &$errno, &$errstr, 30); if(!$fp) { echo "$errstr ($errno)<br>\n"; } else { fputs($fp,"GET / HTTP/1.0\n\n"); while(!feof($fp)) { echo fgets($fp,128); } fclose($fp); }