password_needs_rehash()

show_404($page = '', $log_error = TRUE)

password_get_info($hash)

password_hash($password, $algo[, $options = array()])

mb_strpos($haystack, $needle[, $offset = 0[, $encoding = NULL]])

hash_equals($known_string, $user_string)

password_verify($password, $hash)

get_mimes()

get_instance()

remove_invisible_characters($str[, $url_encoded = TRUE])