To learn PHP4 or PHP5?

[VestanPance]

'ello All,
I bought a book called "PHP and MySQL Web Development" (Welling, Thomson) a while back with the intention to start learning PHP. Well things got in the way and I am just now picking it up. The book covers PHP4. Should I just install PHP4 and use the book and then learn PHP5 afterwards? Or should I just start out learning PHP5 and get a new book? Or can I install PHP4 and use this book (is there a great difference between the two)

Thanks for your time (Can't wait to get started!)

SP(VP)

[tsinka]

Hi,

there isn't very much difference between the two if it comes to the basics of PHP. There are major differences regarding e.g. classes. You can find a description of the differences here.

I tested some applications developed under PHP4 on a PHP5 installation and hardly any changes were neccessary.

Just to learn, I'd suggest to install PHP5 and use that book. That should be sufficient for the beginning.

Thomas