public function readBinary()
    {
        $length = $this->readVInt();
        $returnValue = substr($this->_data, $this->_position, $length);
        $this->_position += $length;
        return $returnValue;
    }
public function readBinary()
    {
        $length = $this->readVInt();
        $returnValue = substr($this->_data, $this->_position, $length);
        $this->_position += $length;
        return $returnValue;
    }
public function readBinary ( ) { $ length = $ this -> readVInt ( ) ; $ returnValue = substr ( $ this -> _data , $ this -> _position , $ length ) ; $ this -> _position += $ length ; return $ returnValue ; }
Reads binary data from the current position in the file
and advances the file pointer.

@return string
Reads binary data from the current position in the file and advances the file pointer .