src/Binary/StreamReader.php
public function readSFixed64(Stream $stream)
    {
        $bytes = $stream->read(8);

        list(, $lo0, $lo1, $hi0, $hi1) = unpack('v*', $bytes);

        return ($hi1 << 16 | $hi0) << 32 | ($lo1 << 16 | $lo0);
    }
public function readSFixed64(Stream $stream)
    {
        $bytes = $stream->read(8);

        list(, $lo0, $lo1, $hi0, $hi1) = unpack('v*', $bytes);

        return ($hi1 << 16 | $hi0) << 32 | ($lo1 << 16 | $lo0);
    }
public function readSFixed64 ( Stream $ stream ) { $ bytes = $ stream -> read ( 8 ) ; list ( , $ lo0 , $ lo1 , $ hi0 , $ hi1 ) = unpack ( 'v*' , $ bytes ) ; return ( $ hi1 << 16 | $ hi0 ) << 32 | ( $ lo1 << 16 | $ lo0 ) ; }
Decode a fixed 64bit integer with sign.

@param \Protobuf\Stream $stream

@return integer
Decode a fixed 64bit integer with sign .