On Mon, 2006-04-10 at 17:46, darren kirby wrote:
> quoth the Robert Cummings:
> >
> > Why do you do this on every request? Why not have a cron job retrieve an
> > update every 20 minutes or whatnot and stuff it into a database table
> > for your page to access? Then if the cron fails to retrieve the feed it
> > can just leave the table as is, and your visitors can happily view
> > slightly outdated feeds? Additionally this will be so much faster that
> > your users might even hang around on your site :)
> 
> This is a very interesting idea, but I am not sure if it is suitable for me 
> at 
> this point. First of all, one feed in particular can change in a matter of 
> seconds, and I do want it to be as up to date as possible. Secondly, this is 
> just for my personal site which is very low traffic, and it is not 
> inconceivable that getting the feed every 20 minutes by cron would be _more_ 
> taxing on the network than simply grabbing it per request...
> 
> And to be fair, when everything is working as it should the feeds are 
> retrieved in a matter of seconds, and I don't think it is annoying my users 
> at all. It is the 0.5% of requests when the remote site is overloaded (or 
> just plain down) that I want to provision for here.
> 
> I do like this idea of caching the feed though. I think in my situation 
> though, rather than prefetching the feed at regular intervals it may be 
> better to cache the most recent request, and check the age of the cache when 
> the next request comes. This way, I would not be needlessly updating it for 
> those times when the page with my feeds goes for a few hours without a 
> request.
> 
> Of course, this still wouldn't solve my original problem.

Well personal websites break all the rules. There's nobody to answer to
but yourself :)

Looks like simplexml neglected to offer a timeout option. You would
probably be better off using curl to retrieve the content, then using
simplexml_load_string(). Curl does allow you to assign a timeout.

Cheers,
Rob.
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