public function getLevelData($id = null)
{
$arr = array();
$m = new mymongo("levels");
$fields = 'level, complete, objectives, star_levels, grid, bonus';
$levelResults = $m->find(array('track' => '1'), $fields, array('level' => 1));
foreach ($levelResults as $res) {
if (!empty($res)) {
//remove the _id fields.
if (array_key_exists('_id', $res)) {
unset($res['_id']);
}
if (array_key_exists('level', $res)) {
$res['level'] = (int) $res['level'];
}
array_push($arr, $res);
}
}
return $arr;
}
