lithium\g11n\multibyte\adapter\Mbstring::strrpos PHP Метод

Here used as a multibyte enabled equivalent of strrpos().

См. ссылку: http://php.net/function.mb-strpos.php

public strrpos ( string $haystack, string $needle ) : integer \| boolean
$haystack	string
$needle	string
Результат	integer \| boolean

    public function strrpos($haystack, $needle)
    {
        return mb_strrpos($haystack, $needle, 0, 'UTF-8');
    }

Mbstring