Re: simpleXML - simplexml_load_file() timeout?
| From: | darren kirby | Date: | Mon, 10 Apr 2006 22:26:26 +0000 |
| Subject: | Re: simpleXML - simplexml_load_file() timeout? | ||
| References: | 1 2 3 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-233701@lists.php.net to get a copy of this message | ||
quoth the Robert Cummings:
> 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 view slightly outdated feeds?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.
That's the ticket! Thanks a lot for your help.
> Cheers,
> Rob.
-d
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darren kirby :: Part of the problem since 1976 :: http://badcomputer.org
"...the number of UNIX installations has grown to 10, with more expected..."
- Dennis Ritchie and Ken Thompson, June 1972
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