Подсчет кол-ва документов в папке

<?php
$id = isset($docid) ? $docid : $modx->documentIdentifier;
$d = isset($depth) ? $depth : 0;
$fs = isset($fields) ? $fields: 0;
$da = $modx->getChildIds($id, $d); 
$df = $modx->getDocuments($da,$fields=($fs)); 
return (count($da) - count($df));
?>

<?php
$docid = isset($docid) ? intval($docid) : $modx->documentIdentifier;
$depth = isset($depth) ? intval($depth) : 0;
$isfolder = isset($isfolder) ? intval($isfolder): 0;
$published = isset($published) ? intval($published): 1;
$davailable = $modx->getChildIds($docid, $depth); 
$dcount = $modx->getDocuments($davailable, $published, 0, 'id', 'isfolder='.$isfolder); 
return count($dcount);
?>

<?php
$id = isset($docid) ? $docid : $modx->documentIdentifier;
$d = isset($depth) ? $depth : 0;
$published = isset($published) ? $published: 1;
$tpl= isset($tpl) ? $tpl: 1;

$da = $modx->getChildIds($id, $d);

$count=0;

foreach ($da as $key){
   $txt = $modx->getDocument($key,'template',$published);
   if($txt['template'] == $tpl){$count++;}
}

return $count;
?>

[[ChildCounter? &docid=`[+wf.docid+]`&depth=`2`&tpl=`8`]]

<?php
$docid = isset($docid) ? intval($docid) : $modx->documentIdentifier;
$depth = isset($depth) ? intval($depth) : 0;
$isfolder = isset($isfolder) ? intval($isfolder): 0;
$tpl = isset($tpl) ? $tpl: -1;
$published = isset($published) ? intval($published): 1;
$davailable = $modx->getChildIds($docid, $depth);

$where = ($tpl > 0) ? 'template='.$tpl : 'isfolder='.$isfolder;
$dcount = $modx->getDocuments($davailable, $published, 0, 'id', $where); 
return count($dcount);
?>

Каталог авто
-AC 7
-Acura 7
--CL  7
---Машинка первая  8
--EL 7
---Машинка вторая  8
--Integra 7
-Alfa Romeo 7
--145 7
--CZ 7
--Sport Vagon 7

AC 1
Acura 2
Alfa Romeo 0