$key = param('key');
	$des = param('des');
   $dbh->do("UPDATE settings SET key='$key', des='$des'") or die $dbh->errstr;



##</code><code>##

Error: 

You have an error in your SQL syntax near 'key='sss', des='sss' WHERE 1' at line 1 at admin.cgi line 177.