Обрезаем текст
/**
* Обрезаем строку
*
* @param $string
* @param int $length
* @return string
*/
public static function cut($string, $length = 400)
{
if (mb_strlen($string) < $length)
return $string;
$string = strip_tags($string);
$string = mb_substr($string, 0, $length);
$string = rtrim($string, "!,.-");
$string = mb_substr($string, 0, strrpos($string, ' '));
return $string . "...";
}