RE: [PHP] Expedia.com

Hi Rene, Here's a thought- make your animated gif that's a "grow-bar" that fills from left to right. Maybe it maxes out at 99% or loops back around to 0 after reaching 100. :) Display this at the top of the screen - but not within a table that is part of the results display. More on why shortly. Send about 256 characters of HTML (including the IMG SRC link to your gif), then issue a flush(). At this point begin your long-running query, displaying output as it becomes avialable. Once the output is complete, issue a javascript that changes the gif to a different one that's not animated (ex: 100%). A few things to keep in mind: - Some IE browsers won't display anything until 255 chars have been output- hence the 256 number above. - Some NS browsers won't display a portion of a table until the entire table including closing tag has been written. Hence, don't put your grow-bar inside a table unless it's completed before issuing the long-running query. Hope this helps, james >-----Original Message----- >From: René Fournier [mailto:m5@renefournier.com] >Sent: Wednesday, June 09, 2004 3:35 PM >To: php >Subject: [PHP] Expedia.com > > >When Expedia.com is searching for flights, it displays a page with a >little animated GIF progress bar, then display the results. > >How do they do that? How does the page sit idle until the query is >finished, and then sends a new page with the results? I was thinking >that they might use HTTP-REFRESH or something, and just keep hitting >the database until the result is there. But is there a "best way" to do >this? In my application, when the user clicks a certain button, it will >take 10-20 seconds for the operation to complete—during that time I >need the web browser to "waiit" for the data. > >I looked around for an article on this, but I'm not sure how to >characterize this operation. > >...Rene >-- >PHP General Mailing List (http://www.php.net/) >To unsubscribe, visit: http://www.php.net/unsub.php > >