[Array or session problem in php version 5.2.17]

(SOLVED) I had the same problem: only session array were lost. I confirm the solution:

 

in my php.ini I turned Off the register_globals parameter:

 

(php.ini)

 

; You should do your best to write your scripts so that they do not require

; register_globals to be on; Using form variables as globals can easily lead

; to possible security problems, if the code is not very well thought of.

register_globals = Off

 

 

...now it works!