Description:
------------
I seem to be having inconsistant results using gethostbyname() and fsockopen().  On one hand I can make all the gethostbyname and fsockopen calls I want, as observed in:

http://sey.prometheus-designs.net/meh/index2.php
( Source: http://sey.prometheus-designs.net/meh/index2.phps )

However, in:

http://sey.prometheus-designs.net/meh/index.php
( Source: http://sey.prometheus-designs.net/meh/index.phps )

When one enters a domain in the first text box and nothing in the second, for example, apple.com, my script successfully gets the ip address of whois.verisign-grs.net, but not whois.markmonitor.com.  However, if whois.markmonitor.com is put in the second text box, forcing it to query whois.markmonitor.com first, it runs just fine.

What I believe to be the problematic code is in the get_raw_whois function I made.  Header.php and footer.php are only html with the exception of the date function used in header.php.  Phpinfo is:

http://sey.prometheus-designs.net/phpinfo.php

Reproduce code:
---------------
function get_raw_whois( $whois, $domain )
{
	$ip = gethostbyname( $whois );
	print( 'Attempting to use ' . $whois . ' ( ' . $ip . ' ) ..<br />' );
	
	$fp = fsockopen( $whois, 43, $errno, $errstr, 30 );
	
	if( !$fp )
	{
		$output = 'Could not perform whois: ' . $errno . ' ( ' . $errstr . ' )';
	}
	else 
	{
		fputs( $fp, $domain . "\r\n" );
		
		while( !feof( $fp ) )
		{	
			$temp = trim( fgets( $fp, 1024 ), "\x00..\x1F" );
			
			if( stristr( $temp, 'whois server:' ) )
			{
				fclose( $fp );
				return get_raw_whois( substr( $temp, strpos( $temp, ':' ) + 1 ), $domain );
			}
		
			$output .= $temp . '<br />';
		}
	}
	
	fclose( $fp );
	
	return $output;
}

Expected result:
----------------
$whois is supposed to be a uri to a whois server, $domain a domain name and tld.  First some text is printed about what whois server is being used.  Then a connection is made to that server, if it cannot be contacted in 30 minutes, failure.  Upon successful connection, the whois request is made.  The while statement ensures that all incoming data from the whois request is accounted for in some manner, barring exceptions.  Input is trimmed and then examined to contain 'whois server:'.  If this is found, it grabs that whois server off the end of that line, closes the connection, and recursively runs get_raw_whois, if not, it saves the input in to an output container.  After the whois server is done sending it's stuff, the connection is closed and output is returned to be printed on the screen.

Actual result:
--------------
After the recursive call is made, gethostbyname and fsockopen do not function properly.

Attempting to use whois.verisign-grs.net ( 198.41.3.54 ) ..
Attempting to use whois.markmonitor.com ( whois.markmonitor.com ) ..

Warning: fsockopen() [function.fsockopen]: php_network_getaddresses: getaddrinfo failed: Name or service not known in /home/.camella/sey/sey.prometheus-designs.net/meh/index.php on line 297

Warning: fsockopen() [function.fsockopen]: unable to connect to whois.markmonitor.com:43 (Unknown error) in /home/.camella/sey/sey.prometheus-designs.net/meh/index.php on line 297

Warning: fclose(): supplied argument is not a valid stream resource in /home/.camella/sey/sey.prometheus-designs.net/meh/index.php on line 325
Could not perform whois: -1073765632 ( )