private function readLong()
    {
        $long = unpack('V', $this->reader->read(4));
        $long = (int) $long[1];

        return $long;
    }
private function readLong()
    {
        $long = unpack('V', $this->reader->read(4));
        $long = (int) $long[1];

        return $long;
    }
private function readLong ( ) { $ long = unpack ( 'V' , $ this -> reader -> read ( 4 ) ) ; $ long = ( int ) $ long [ 1 ] ; return $ long ; }
Reads and unpacks an unsigned long.

This method will read an unsigned long (little-endian byte order) from
the file and return the unpacked value.

@return integer The unsigned long.
Reads and unpacks an unsigned long .