Unnamed

function account_namevalid($username){	$bad_words = array (		'root','bin','daemon','lp','sync','shutdown','halt','mail',		'news','uucp','operator','games','mysql','httpd','nobody','dummy',		'www','cvs','shell','ftp','irc','debian','ns','download'	);	if(		(strlen($username) < 5) ||		(strlen($username) > 25) ||		(in_array($bad_words,$username)) ||		(preg_match('/[a-zA-Z0-9]+_/',$username) == 0)	)		return false;	return true;}