Checks whether a language negotiation provider is enabled for a language type.
This has two possible behaviors:
$type: The language negotiation provider type.
$provider_id: The language negotiation provider ID.
The provider ID if it is enabled, FALSE otherwise.
function language_negotiation_get($type, $provider_id = NULL) {
$negotiation = variable_get("language_negotiation_{$type}", array());
if (empty($negotiation)) {
return empty($provider_id) ? LANGUAGE_NEGOTIATION_DEFAULT : FALSE;
}
if (empty($provider_id)) {
return key($negotiation);
}
if (isset($negotiation[$provider_id])) {
return $provider_id;
}
return FALSE;
}