In article <[EMAIL PROTECTED]>, 
[EMAIL PROTECTED] says...
> I am displaying a folder tree and want to alternate the colors for each
> folder so my database table shows that for example the Apples folder is
> located under the Fruits folder.  Therefore I want to know which row is odd
> or even so I can assign it different colors.  Incidently, does anyone know
> of a more efficient way of displaying a folder tree without doing it
> recursively?
> 
> id parent_id name
> == ========= =======
> 1      1     Home
> 2      1     Products
> 3      2     Fruits
> 4      2     Vegetables
> 5      3     Apples
> 
> 
> function build_folder_tree(&$output, $parent=1, $indent="")
> {
>   $qid = mysql_query("SELECT id, name FROM folders WHERE parent_id =
> $parent");
> 
>   while ($cat =  mysql_fetch_object($qid))
>   {
>     $output .= $cat->name + $indent; // here is where I want to assign diff.
> colors
>     if ($cat->id != $parent)
>       build_folder_tree($output, $cat->id, $indent."&nbsp;&nbsp;");
>   }
> }

Well, you don't need to know what row number is. Something like:

function build_folder_tree(&$output, $parent=1, $indent="")
{
$color = "red"; // Set var to first option

  $qid = mysql_query("SELECT id, name FROM folders WHERE parent_id =
 $parent");

  while ($cat =  mysql_fetch_object($qid))
  {
    $output .= $cat->name + $indent; // here is where I want to assign 
diff. colors
  $color == "red" ? $color = "blue": $color = "red"; // Cycle color for 
each iteration
 
    if ($cat->id != $parent)
      build_folder_tree($output, $cat->id, $indent."&nbsp;&nbsp;");
  }
}



-- 
David Robley
Temporary Kiwi!

Quod subigo farinam

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