Does PHP "cache" scripts?

[R. Rajesh Jeba Anbiah]

Re: Does PHP "cache&quo t; scripts?

StevePBurgess@g mail.com wrote:

I've just run the script in Firefox again and noticed something odd.
There are two links, thus:
>
MOVE UP - MOVE DOWN
>
When I click on MOVE UP the database isn't updated but I get this in
the address box when the script returns me to the main page:
>

http://www.etc.com/credits.php?r=1158400161

>
When I click MOVE DOWN the database isn't updated and I get this:
>

http://www.etc.com/credits.php?r=1158400662

>
if I click MOVE UP again I get
>

http://www.etc.com/credits.php?r=1158400161

>
which is the same as the first time I clicked it. The r= variable is
the unix time stamp so either firefox is caching the page or my server
is somehow going back in time! ;o)
>
If I leave it for a while and try again, the number is updated to a new
number (and sometimes the database is updated and the order on the
credits page is changed).

<snip>

My guess:
1. You're paying more to your hosting provider and they have some
master-slave architecture for kinda data recovery.
2. Caching issue:
a. Your ISP is caching the pages
b. As your scripting is instructing to cache (so you better post the
link & phpinfo so that someone can dig the HTTP headers and provide
suggestion) or using .html extension (some buggy proxy implementation
will flag it as static page).

--
<?php echo 'Just another PHP saint'; ?>
Email: rrjanbiah-at-Y!com Blog: http://rajeshanbiah.blogspot.com/

[StevePBurgess@gmail.com]

Re: Does PHP &quot;cache&quo t; scripts?

Hi all.

Just to "close" this, I wanted to let you know what I did that solved
it.

I typed:

about:config

into the Firefox address box and then changed the configuration
setting:

browser.cache.c heck_doc_freque ncy

to 1 (always check for new content).

The default is 3 (regularly check).

This has solved the problem.

This doesn't explain why the behaviour is different on different
servers - but it has solved the problem.

Thanks for all your input.

Steve

[NC]

Re: Does PHP &quot;cache&quo t; scripts?

StevePBurgess@g mail.com wrote:

>
I wanted to let you know what I did that solved it.
>
I typed:
>
about:config
>
into the Firefox address box and then changed the configuration
setting:
>
browser.cache.c heck_doc_freque ncy
>
to 1 (always check for new content).
>
The default is 3 (regularly check).
>
This has solved the problem.
>
This doesn't explain why the behaviour is different on different
servers - but it has solved the problem.

It does; your ISP probably has a slightly paranoid caching server on
their network...

Cheers,
NC