[solved] getResource total count

$modx->getPlaceholder('total');

$sql = "SELECT *
FROM `it_site_content`
INNER JOIN `it_site_tmplvar_contentvalues`
ON it_site_tmplvar_contentvalues.contentid = it_site_content.id
AND it_site_tmplvar_contentvalues.tmplvarid = 17
AND it_site_content.parent = 18
AND it_site_tmplvar_contentvalues.value LIKE '%$id%'";
$res = mysql_query($sql);
$num = mysql_num_rows($res);

$c = $modx->newQuery('modResource');
$c->leftJoin('modTemplateVar','contentid');
$c->where(array(
    'modResource.published' => 1,
    'modResource.parent' => 18,
    'modTemplateVar.tmplvarid' => 17,
    'modTemplateVar.contentid' => 'modResource.id',
    'modTemplateVar.value:LIKE' => '%$id%',
));
$c->sortby('menuindex','ASC');
$c->limit(10,10);
  
$resources = $modx->getCollection('modResource',$c);
$num = count($resources);

last = empty($last) ? (count($collection) + $idx - 1) : intval($last);

$modx->setPlaceholders('total',count($collection));

$modx->getPlaceholder('total');

$total = count($collection);

  $results = $modx->runSnippet('getResources', array(
	'parents' => 18,
	'depth' => 5,
	'limit' => 5,
	'includeTVs' => 1,
	'processTVs' => 1,
	'includeContent' => 1,
	'paginateAlwaysShowLinks' => 1,
	'tvFilters' => 'components==%$id%',
        'tpl' => 'ListItem',
        'tplLast' => 'ListLast',
        'totalVar' => 'totalsol'
));

<?php
/* get curentproduct id */
  $id=$modx->resource->get('id');
  $result = "";
  if (!empty($id)) {

  /* list output */
  $result = "
    <div>Header text</div>
    <ul>
    ";
  $result .= $modx->runSnippet('getResources', array(
	'parents' => 18,
	'depth' => 5,
	'limit' => 5,
	'includeTVs' => 1,
	'processTVs' => 1,
	'includeContent' => 1,
	'paginateAlwaysShowLinks' => 1,
	'tvFilters' => 'components==%'.$id.'%',
        'tpl' => 'ListItem',
        'tplLast' => 'ListLast',
        'totalVar' => 'totalsol'
));
  $result .= "</ul>";
    }
$num = $modx->getPlaceholder('totalsol');
if ($num == 0) {$result = "";}
  return $result;