public static function en2ar($string, $locale='en_US')
    {
//        setlocale(LC_ALL, $locale);
        $string = iconv("UTF-8", "ASCII//TRANSLIT", $string);
        $string = preg_replace('/[^\w\s]/', '', $string);
        
        $string = strtolower($string);
        $words  = explode(' ', $string);
        $string = '';
        
        foreach ($words as $word) {
            $word = preg_replace(
                self::$_en2arPregSearch, 
                self::$_en2arPregReplace, $word
            );
            $word = str_replace(
                self::$_en2arStrSearch, 
                self::$_en2arStrReplace, 
                $word
            );

            $string .= ' ' . $word;
        }
        
        return $string;
    }