set_index() set_index(array $index) : mixed Set the predetermined sort order. Parameters array $index Numerically indexed array of IMAP UIDs Returns mixed —
sort_headers() sort_headers(array $headers) : mixed Sort the array of header objects Parameters array $headers Array of rcube_message_header objects indexed by UID Returns mixed —
compare_uids() compare_uids(int $a, int $b) : mixed Sort method called by uksort() Parameters int $a Array key (UID) int $b Array key (UID) Returns mixed —