Cacher is the code snippet organizer for pro developers

<?php
/* 
  TemplateReport snippet
  list the templates used by the site 
  and the number of published and unpublished pages each template uses

  Author: http://forums.modx.com/u/BobRay
  Source: http://forums.modx.com/thread/94635/simple-count-of-pages-using-a-particular-template#dis-post-512567
*/
/* [[TemplateReport]] */
$templates = $modx->getCollection('modTemplate');
 
$output = '<h3>Template Report</h3>';
$output .= "\n<ul>";
 
$published = array('published' => '1');
$unpublished = array('published' => '0');
foreach ($templates as $template) {
    $id = $template->get('id');
    $name = $template->get('templatename');
    $c1 = $modx->newQuery('modResource');
    $c1->where(array(
        'published' => '1',
        'template'  => $id,
    ));
    $numPublished = $modx->getCount('modResource', $c1);
 
     $c2 = $modx->newQuery('modResource');
     $c2->where(array(
         'published' => '0',
         'template'  => $id,
     ));
     $numUnpublished = $modx->getCount('modResource', $c2);
 
     $output .= "\n" . '<li><b>' . $name . '</b>';
        $output .= "\n<ul>";
           $output .= "\n" . '   <li>Published resources: ' . $numPublished . '</li>';
           $output .= "\n" . '   <li>Unpublished resources: ' . $numUnpublished . '</li>';
        $output .= "\n</ul>";
        $output .= "\n</li>";
}
    $output .= "\n</ul>";
 
return $output;