php process control problem

[patton]

Hi all,

i have a problem related process control in php.
I must solve this problem :

I need to process some computation but i do not want the user wait the end of the computation but instead i would send the user a "wait refreshing page".
When the computation is finished i would replace the refreshing page with the new page containing the results.
So i need 2 processes one that would make the waiting page and one that would do computation and make the results page.

I read in the php manual that handling processes within a web server environment could raise problems.

Is there a simple and a clear manner to solve this problem?

thank you in advance

Patton