If you'd like to understand pack/unpack. There is a tutorial here in perl, that works equally well in understanding it for php:
http://perldoc.perl.org/perlpacktut.html
If you'd like to understand pack/unpack. There is a tutorial here in perl, that works equally well in understanding it for php:
http://perldoc.perl.org/perlpacktut.html