$fr1 = $db->query("SELECT * FROM `forum_sections` WHERE id='" . $other . "'")->fetch();может?
$fr1 = $db->query("SELECT * FROM `forum_sections` WHERE id='" . mysql_real_escape_string($other) . "'")->fetch(); $fr1 = $db->query("SELECT * FROM `forum_sections` WHERE id='" . $other . "'")->fetch();$fr1 = $db->query("SELECT * FROM `forum_sections` WHERE id='" . mysql_real_escape_string($other) . "'")->fetch();