architecture-migration

32 to 64 bit "Gotchas" in PHP

Last weekend I changed webhosts for my website. The host server I was on was a 32-bit OS and the one I moved to is 64-bit. Unexpectedly, some of my PHP scripts started giving incorrect results. In my case the << and >> (bit shift) operations were the culprit. I ended up having to mask the result with 0xFFFFFFFF and then changing the re...

As a programmer, what do I need to worry about when moving to 64-bit windows?

Most of my recent programming has been on 32-bit Windows using C/C++/C#/VB6 . Lately, my customer are asking if my code will run on 64-bit Windows. I'm wondering what legacy features I might be using that will break on 64-bit Windows? What are some real-world issues I need to think about and worry about? Obviously, I will test my code ...