public static function open_group($TITLE, $GROUPLEVEL = 'current', $LEVEL = "DEBUG") { if ($GROUPLEVEL == 'current') { $GROUPLEVEL = self::$GROUP_LEVEL; } elseif ($GROUPLEVEL == 'next') { $GROUPLEVEL = self::$GROUP_LEVEL + 1; self::$GROUP_LEVEL = $GROUPLEVEL; } elseif (is_int($GROUPLEVEL)) { self::$GROUP_LEVEL = $GROUPLEVEL; } self::set('', $LEVEL, $TITLE, $GROUPLEVEL); }