dealing with numbers in php

[Red Squirrel]

I'm writing a program in php that needs to communicate with a server using a custom protocol. I need to be able to send data numericly, and occupy a specified number of bits/bytes.

Ex say I have this packet

size | field name
8bit | header
16bit | 2 byte integer

How do I go about sending the packet so the fields have this value:

250
60000


Which would equal this in hex:

FA EA 60

Basically I'd like to be able to manipulate at the bit level, to some extent.

 

[tfinch2]

Look at the pack function.

 

[Red Squirrel]

Thanks seems that does the trick.