(not quite linux) PHP3 or not to PHP3?

[Erich S.]

Hiya folks! (excuse the lame attempt at humor in subject line)

I'm starting to dork around with PHP a bit and wanted to do my own
installation on my linux box. I have the Wrox PHP programming book that
was written before PHP4 came out as a starting reference.

My question: Will most stuff out there work with PHP4 even though
originally written for PHP3? Is there any reason to install both?

I tend to be a bit conservative when playing with new version releases of
software and PHP4 seems to be a pretty recent release.

There used to be some folks on the LUAU list who met occasionally to do
PHP stuff...are they still out there? :)

Thanks in advance!

Erich