// Retrieves array of ids for records of $get_module linked to $from_module by $get_id
// Example: to retrieve list of Contacts associated to Account X: $return = get_linked_records("Contacts", "Accounts", "X");
function get_linked_records($get_module, $from_module, $get_id) {
	global $beanList, $beanFiles;

	// instantiate and retrieve $from_module
	$from_class = $beanList[$from_module];
	require_once($beanFiles[$from_class]);
	$from_mod = new $from_class();
	$from_mod->retrieve($get_id);

	// loop through link fields of $module_1, checking for a link to $module_2
	$link_found = FALSE;
	foreach ($from_mod->get_linked_fields() as $linked_field) {
		$field = $linked_field['name'];

		$from_mod->load_relationship($field);
		if (empty($obj_1->$field)) {
			continue;
		}
		elseif ($from_mod->$field->getRelatedModuleName() == $get_module) {
			$link_found = TRUE;
			break;
		}
	}

	if ($link_found === FALSE) {
		return FALSE;
	}

	$id_arr = $from_mod->$link_field->get();

	return $id_arr;
}