NYCPHP Meetup

[Dell Sala]

Cute. And javascript free. :)

However, there is a limitation to this kind of approach: It will only  
work for requests that will return before your connection times out.  
In many cases, this probably isn't a huge issue as the "slow" script  
might only take about 30 seconds to run, or something like that. But  
what about a script that builds a large, compressed archive, or runs  
a complex index, or something like that. Now were talking minutes,  
and the web server will eventually timeout.

That's when you need to fire up that sub-process to run in the  
background, and just use the browser to poll the server to check if  
the process finished.

-- Dell


On Oct 31, 2006, at 10:10 AM, Bill Kamm wrote:

> I use the following. It's simple, and it works. It displays the  
> message
> "Please wait while we process your request", and immediately redirects
> to the url that does the actual work. The "processing" message will
> remain on the user's browser until your other php script returns data.
>
> <html>
> <head>
> <meta http-equiv="refresh"
> content="0;url=http://yourdomain.com/process.php">
> </head>
>
> <body>
> <p>Please wait while we process your request...<p />
> </body>
> </html>
>
>
>
> Bill
>
> Cliff Hirsch wrote:
>
>> Many web sites display a “processing please wait” page after
>> submitting an order, request, etc. and then display the final
>> confirmation page when it’s available.
>>
>> I’m confused by how that works. Does the server-side script spit  
>> out a
>> “processing” page by flushing the output buffer and then redirect  
>> when
>> the script is completed? Or does the client-side JavaScript display
>> the “processing” page while the server script goes about its  
>> business?
>>
>> Cliff
>>
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>
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