카테고리(분류) 리스트 ul li

<?
include_once("./_common.php");

$sql = " select gr_id, gr_subject from $g4[group_table] order by gr_id ";
$result = sql_query($sql);
while ($row=sql_fetch_array($result)) {
    echo "<ul>";
    echo "<li><a href='$g4[bbs_path]/group.php?gr_id=$row[gr_id]'>$row[gr_subject]</a>";
    echo "<ul>";
    $sql2 = " select bo_table, bo_subject from $g4[board_table] where gr_id = '$row[gr_id]' order by bo_order_search ";
    $result2 = sql_query($sql2);
    while ($row2=sql_fetch_array($result2)) {
        echo "<li><a href='$g4[bbs_path]/board.php?bo_table=$row2[bo_table]'>$row2[bo_subject]</a></li>";
    }
    echo "</ul>";
    echo "</li>";
    echo "</ul>";
}
?>