RE: Iconize weather info and something else

[Max H. <ma...@fl...>]

Another idea:

some js at the top of the page that says "Loading..." that is sent before
the metar load is started, and then some more at the bottom (ie, after the
metar has been loaded and processed) that rewrites the document to just
display the metar? I've no idea what kind of event handler you'd need to get
it to carry on :)

Max

> -----Original Message-----
> From: php...@li...
> [mailto:php...@li...]On Behalf Of Martin
> Geisler
> Sent: 10 February 2002 09:55
> To: php...@li...
> Subject: Re: Iconize weather info and something else
>
>
> "Ray van Beek" <r_v...@ho...> writes:
>
> > - some javascript. When this page has been loaded, the javascript
> > executes. The javascript should then generate a new 'page' (nr-2).
> > This nr-2 page contains php script that retrieves the metar data.
> > The nr-2 page comes to the browser only when the metar data has been
> > received and processed. The nr-2 page contains javascript (outputted
> > by the php) that sets a javascript metar-variable.
>
> I don't know very much about java(script), but I do know this:
> java(script) runs on the client and PHP runs at the server. The client
> will not be able to make a page nr-2 with come PHP code, as this code
> is executed only at the server. So I think the step above would fail.
>
> But I've seen several pages that redirect you to another page after
> 5-10 seconds. So we could make a page that says 'Retrieving data...',
> and then after 5 seconds the user is redirected to a page that
> displays the data. The first page should trigger the PHP code that
> retrieves the data, so that the data is ready 5 seconds later.
>
> It's just that this would impose a 5 seconds-penalty to every report
> shown, and it also makes the caching mechanisms useless.
>
> What we need is this: a way to update a page on the client at the
> moment data arrives. I don't know if java(script) can be run
> asynchronously in the background, so that the script could wait for
> data in the background (the same way as the browser waits for data in
> the foreground as it is now) and then update the right paragraph on
> the page when the data has arrived.
>
> > [...]
>
> --
> Martin Geisler                       My GnuPG Key: 0xF7F6B57B
>
> See my homepage at http://www.gimpster.com/ for:
> PHP Weather => Shows the current weather on your webpage.
> PHP Shell   => A telnet-connection (almost :-) in a PHP page.
>
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