src/S.php
public static function length($string)
    {
        if (function_exists('mb_strlen')) {
            return mb_strlen($string, static::getEncoding());
        }

        if (function_exists('iconv_strlen')) {
            return iconv_strlen($string, static::getEncoding());
        }

        return false;
    }
public static function length($string)
    {
        if (function_exists('mb_strlen')) {
            return mb_strlen($string, static::getEncoding());
        }

        if (function_exists('iconv_strlen')) {
            return iconv_strlen($string, static::getEncoding());
        }

        return false;
    }
Calculates count of characters in string.
@param $string
@return bool|int