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Posted by Richard Lynch on 03/01/05 20:47
rory walsh wrote:
> Hi I have a one simple question that I need to sort out before I
> continue writing any PHP scripts. Every time I call a script are the
> variables reset to the default values? If for example I call action.php
> from a form with a hidden value "test", I set $NUMBER to 5. If I then
> call action.php again from another form with another hidden value which
> means that I do not assign any number to $NUMBER, will $NUMBER now go
> back to being its default value or will it stay at 5? So basically I
> think my question is, each time one runs a script is it the same as
> starting the application all over again? Cheers,
> Rory.
Every single HTTP request for a URL (every page the user clicks on, or
submits a form, or re-loads) is COMPLETELY independent of the other
requests.
The only data/values that will "survive" from script to script are the
ones you explicitly "save" and "transmit" through GET/POST/COOKIE/SESSION
mechanisms.
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