Reader::privateReadString PHP Method

    private function privateReadString()
    {
        $tag = $this->stream->getc();
        switch ($tag) {
            case Tags::TagUTF8Char:
                return $this->readUTF8CharWithoutTag();
            case Tags::TagString:
                return $this->readStringWithoutTag();
            case Tags::TagRef:
                return (string) $this->readRef();
            default:
                throw $this->unexpectedTag($tag);
        }
    }