$c->toSql(); // zobrazi SQL dotaz
 
$getCount('modResource', $c); // pocet elementu odpovidajicich dotazu, count()

<?php
$tv = $modx->getObject('modTemplateVar', $id); // $id = ID template variable
// nebo
$tv = $modx->getObject('modTemplateVar', array('name'=>'MyTV'));
 
$v = $tv->getContent();  // for the default value of the TV itself.
$v = $tv->getValue(12);  // for the raw value of the TV in doc 12
$v = $tv->getValue($modx->resource->get('id')); // for the raw value of the TV in the current doc.
$v = $tv->renderOutput(12); // for the processed value of the TV in doc 12.
$v = $tv->renderOutput($modx->resource->get('id')); // for the processed value of the TV in the current doc.