public static function replaceDiacriticsChars($str)
    {
        $return = preg_replace(
            array(
                /* Lowercase */
                '/[\x{0105}\x{00E0}\x{00E1}\x{00E2}\x{00E3}\x{00E4}\x{00E5}]/u',
                '/[\x{00E7}\x{010D}\x{0107}]/u',
                '/[\x{010F}]/u',
                '/[\x{00E8}\x{00E9}\x{00EA}\x{00EB}\x{011B}\x{0119}]/u',
                '/[\x{00EC}\x{00ED}\x{00EE}\x{00EF}]/u',
                '/[\x{0142}\x{013E}\x{013A}]/u',
                '/[\x{00F1}\x{0148}]/u',
                '/[\x{00F2}\x{00F3}\x{00F4}\x{00F5}\x{00F6}\x{00F8}]/u',
                '/[\x{0159}\x{0155}]/u',
                '/[\x{015B}\x{0161}]/u',
                '/[\x{00DF}]/u',
                '/[\x{0165}]/u',
                '/[\x{00F9}\x{00FA}\x{00FB}\x{00FC}\x{016F}]/u',
                '/[\x{00FD}\x{00FF}]/u',
                '/[\x{017C}\x{017A}\x{017E}]/u',
                '/[\x{00E6}]/u',
                '/[\x{0153}]/u',

                /* Uppercase */
                '/[\x{0104}\x{00C0}\x{00C1}\x{00C2}\x{00C3}\x{00C4}\x{00C5}]/u',
                '/[\x{00C7}\x{010C}\x{0106}]/u',
                '/[\x{010E}]/u',
                '/[\x{00C8}\x{00C9}\x{00CA}\x{00CB}\x{011A}\x{0118}]/u',
                '/[\x{0141}\x{013D}\x{0139}]/u',
                '/[\x{00D1}\x{0147}]/u',
                '/[\x{00D3}]/u',
                '/[\x{0158}\x{0154}]/u',
                '/[\x{015A}\x{0160}]/u',
                '/[\x{0164}]/u',
                '/[\x{00D9}\x{00DA}\x{00DB}\x{00DC}\x{016E}]/u',
                '/[\x{017B}\x{0179}\x{017D}]/u',
                '/[\x{00C6}]/u',
                '/[\x{0152}]/u',
            ),
            array(
                'a', 'c', 'd', 'e', 'i', 'l', 'n', 'o', 'r', 's', 'ss', 't', 'u', 'y', 'z', 'ae', 'oe',
                'A', 'C', 'D', 'E', 'L', 'N', 'O', 'R', 'S', 'T', 'U', 'Z', 'AE', 'OE',
            ),
            $str
        );

        $to_replace     = array('Ț', 'Ă', 'Ș', "ș", "ă", "â", "î", "ț", "ţ", "Ț", "Î", "Ă", "Ș", "Â");
        $replace_with   = array('T', 'A', 'S', 's', 'a', 'a', 'i', 't', 't', 'T', 'I', 'A', 'S', 'A');

        $return = str_replace($to_replace, $replace_with, $return);

        return $return;
    }