Display hierarchical data

Question

I am playing around with a code example i found here about \'tree menu\' and wanted to make this question.

function tree($id)
{
$query = \"SELECT `name`,`id`         


        

Answer 1

You need your tree function to track the level, and then apply padding if the level is greater than 1.

function tree($id, $level=1) {
    $query = "SELECT `name`,`id` from `table` WHERE `id_parrent` = '$id'";
    $result = mysql_query($query);
    if (mysql_num_rows($result) != 0) {
     echo "
";
     while ($row = mysql_fetch_array($result)) {
         if ($level == 1)
             echo "
" . $row[name] . "
";
         else
          echo "
" . $row[name] . "
";
         tree($row[id], $level + 1);
     }
     echo "
";
    }
}