On a page which processes posted form data I validate the data, then redirect if a user is added to the database. I call ob_start at the beginning of the code then redirect with header("Location: page.php"); on page.php do i need to call ob_end_flush();?
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You don't have to use ob_end_flush() in page.php. "The new page lives it's own life"
This is typically how it should be done
ob_start();
?>
<html>
<head>
</head>
</html>
<?
if($fromPosted){
// Process posted data
header("location: page.php");
}
ob_end_flush();
?>
ps! ob_end_flush() would not discard the content of the buffer or affect it at all.
Yes, infact, you don't need to ob_end_flush(); ever in reality. php will automatically do an end_flush when the end of the file is hit if there is anything remaining in the buffer. It is good practice to do the end flushes however as Batalf posted.
You definately do not need to flush on the redirected page because you didn't ever start buffering on it. When you do the redirect the new page is loaded completely on its own not somehow 'inside' of the old one. So unless you do an ob_start() inside of the new page no buffering occurs on it.
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by: Michael701Posted on 2003-08-13 at 08:09:54ID: 9139202
First, if possible you should be checking the user and executing the header() before any output is sent to the browser, then you won't need to use the flush commands.
If you are outputing data before the header then shouldn't you use ob_end_clean() just before the header command?
I'm not positive, but I think when you execute the header() it will discard any data currently in the buffer.