mb_str_word_count

		if (!function_exists('mb_str_word_count')) {
			function mb_str_word_count($string, $format = 0, $charlist = '[]') {
				$string=trim($string);
				if(empty($string)){$words = array();}    else {$words = preg_split('~[^\p{L}\p{N}\']+~u',$string);}
				switch ($format) {   case 0: return count($words); break;       case 1:      case 2: return $words; break;          default: return $words; break;    }
			}
		}