public function readChars($count)
    {
        $chars = '';
        for ($i = 0; !$this->isEmpty() && $i < $count; ++$i) {
            $chars .= $this->readChar();
        }
        return $chars;
    }
public function readChars($count)
    {
        $chars = '';
        for ($i = 0; !$this->isEmpty() && $i < $count; ++$i) {
            $chars .= $this->readChar();
        }
        return $chars;
    }
{@inheritdoc}