Returns information about all defined language types.
An associative array of language type information arrays keyed by type names. Based on information from hook_language_types_info().
function language_types_info() {
$language_types =& drupal_static(__FUNCTION__);
if (!isset($language_types)) {
$language_types = module_invoke_all('language_types_info');
// Let other modules alter the list of language types.
drupal_alter('language_types_info', $language_types);
}
return $language_types;
}