public function readBytes() {
        $binaryLength = $this->read(4);
        if ($binaryLength === "\xff\xff\xff\xff")
            return null;

        $length = unpack('N', $binaryLength)[1];
        return $length === 0 ? '' : $this->read($length);
    }
public function readBytes() {
        $binaryLength = $this->read(4);
        if ($binaryLength === "\xff\xff\xff\xff")
            return null;

        $length = unpack('N', $binaryLength)[1];
        return $length === 0 ? '' : $this->read($length);
    }
public function readBytes ( ) { $ binaryLength = $ this -> read ( 4 ) ; if ( $ binaryLength === "\xff\xff\xff\xff" ) return null ; $ length = unpack ( 'N' , $ binaryLength ) [ 1 ] ; return $ length === 0 ? '' : $ this -> read ( $ length ) ; }
Read bytes.

@return string
Read bytes .