how to build a waiting page?

mshen

I will open a slow php page because the page will do a lot work with MySQL database.

I wait the user can see a waiting page when the slow page is processing.

Do you know how to do it?

Thanks.

Moonglobe

if its possible, it would be with a combination of the output buffering functions and some client side scripts to get rid of the waiting screen.

mshen

Please let me know how to do it.Thanks

Moonglobe

well im not going to show you everything! you have to think for yourself sometimes you know 🙂

anyway, this should get you started.again i have no idea if this is even possible to make it work properly becuase of internal browser caching. but here goes:
page.php:

<?php
set_time_limit(0);
ob_start();
include "welcome.php";
ob_flush();
//lotsa code here 
?>
<script>
document.getElemenById('welcome').style = "visibility: none;";
</script>
<?php
echo $output;
ob_end_flush();
?>

welcome.php:

<div id="welcome">
    <!-- WELCOME PAGE HERE -->
</div>

hth
moon

mshen

PHP have Output buffering support or not?

where I can get information about that?

Thanks

Moonglobe

yes it does.

as to your second ??: uh............the [man]manual[/man]..........

drawmack

you could always just put a little string at the top that says please wait for page to load with an animated graphic of some dots.

Then flush the buffers and then start your processing.

mshen

I do a sample test for PHP buffer control.I hope "welcome" appear first and after 20 second "successful" appear.

but it do not work.the two word appear at same time after 20 second.

Please let me know how to use buffer control with PHP.

thanks a lot.

<?php
ob_start();
echo "welcome !!<br>";
ob_flush();
//
sleep(20);
echo "successful";
?>

xnor82

when php code turns in a for cycle,
you can see the same occur. you can't see the echos, that before for cycle...

mshen

Please help me .Thanks