Given a list of authentication policy URIs that a provider
supports, this method returns the subsequence of those types
that are preferred by the relying party.
public preferredTypes ( $supported_types ) : array | ||
return | array | The sub-sequence of the supported types that are preferred by the relying party. This list will be ordered in the order that the types appear in the supported_types sequence, and may be empty if the provider does not prefer any of the supported authentication types. |