A couple different methods
$results = $modx->query("select `username` from modx_users");
if (!is_object($results)) {
return 'No result!';
}
else {
$r = $results->fetchAll(PDO::FETCH_ASSOC);
echo count($r);
print_r($r);
}
$results = $modx->query("select count(id) as uids from modx_users where id >= '1'");
if (!is_object($results)) {
return 'No result!';
}
else {
$r = $results->fetch(PDO::FETCH_ASSOC);
echo 'uids = '.$r['uids'];
}