For running J!5.1 you must https://fabrikar.com/forums/index.php?wiki/update-from-github/ or include the new file manually https://fabrikar.com/forums/index.php?threads/joomla-5-1-and-fabrik-cannot-find-files-error.54473/post-285151 See also Announcements
Please see our announcement here.
$db = JFactory::getDbo();
$db->setQuery('SELECT id, text FROM #__tablename');
$rows = $db->loadObjectList();
foreach ($rows as $row) {
$options[] = JHTML::_('select.option', $row->id, $row->text);
}
return $options;
$options[] = JHTML::_('select.option', $row->id, $row->text, 'ARGUMENTS ARRAY');