Select Dropdown PHP foreach loop with 'optgroup' options

Question

I have a dropdown menu with a PHP \'foreach\' that I loop through to populate the select options. This works well. However, what I\'d like to do is have various sub labels u

Answer 1

Check if the type changed from the previous value, and then emit the appropriate tags.

Order the query by type:

$query = mysql_query("SELECT * FROM background_albums order by type"); //ordered query

[...]

$type = null;

foreach ($albums as $album) {
  if ($album['type'] != $type) {  // type changed
    if ($type !== null) {
      echo '';  // close previous optgroup
    }
    $type = $album['type'];
    echo '';  // start optgroup
  }

  [...]
}

echo '';  // close last optgroup