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Posted by Erwin Kloibhofer on 11/24/37 11:27
thanks for all your input, it did help a lot!
i came up with a piece of code that does exactly what i want. that is...
o) send out a page with a "this may take a while..." message
o) wait on the server until a certain event has happened
o) once it did happen, redirect to a different page
the only drawback i can see is that the browser keeps displaying "opening
page bla". that is something i can live with and i guess any other solution
that would avoid this would be too difficult to implement, where else the
current solution seems elegant and simple.
one problem i had to solve was to force the browser to do a full reload of
that page, and not taking the page from the cache. is there a more elegant
method to achieve this?
can anyone see any other problems with this code? what i am concerned about
is that after i sent the </body> and </html> tags i keep sending data...
======================================================
<?php
// create a header from the past to make sure the page does not get cached
header("Expires: Mon, 01 Jan 1999 05:00:00 GMT");
header("Last-Modified: ".gmdate("D, d M Y H:i:s")." GMT");
header("Cache-Control: no-store, no-cache, must-revalidate");
header("Cache-Control: post-check=0, pre-check=0", false);
header("Pragma: no-cache");
?>
<html>
<body onload="location.href='index.php'">
This may take a while...
</body>
</html>
<?php
if (ob_get_level() == 0) ob_start();
for ($i = 0; $i < 3; $i++)
{
echo "<b></b>"; // send some useless tags
echo str_pad('', 4096)."\n"; // send at least a 4K buffer
ob_flush();
flush();
sleep(2);
}
ob_end_flush();
?>
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