I've made a function that asks whoisservers for information:

<?
        $WhoIsServer="whois.nic.as"; 
        $fp = fsockopen ("$WhoIsServer", 43, $errnr, $errstr);
        set_socket_blocking($fp,0);
        fputs($fp, "$domain\n"); // Open a connect
        while (!feof($fp)) {
                $result = fgets($fp, 2048);
              $test = ereg_replace(10, " ", $result); // I've tried both ereg_replace(), stripslashes(), stripcslashes() and str_replace() (only ereg_replace and str_replace has worked the way I want)
                print substr("$result",0,4);
        if (substr("$test" ,12,8) == "Server") { //Hvis ledig
                        echo "$MsgFree";
                }
        else if (substr("$test" ,0, 6) == "Rights") { // Hvis opptatt
                        printf ("$MsgTaken");
                }
        }
fclose($fp); // Close
}

?>

When I output the str_replaced string with print, printf and echo, it is all on one line without newlines (I've tried both with \n and ASCII character 10 to represent the newline). But when I use substr($test, 0,12) fx. then it output the twelveth first characters in every line in the original string ($result). When I use substr($test, 2,4), it outputs the 2nd to 4th character in every line in the original $result instead of printing the 2nd to 4th character in the new string that shouldn't contain any newlines.

I use a standard php.ini, and has no unique setup. I've tried this out on both 3.0.16 and 4.0.0