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Request #47123 Robust Output Buffer Control
Submitted: 2009-01-16 03:26 UTC Modified: 2014-07-15 22:28 UTC
From: shepnorfleet at verizon dot net Assigned: mike (profile)
Status: Wont fix Package: *General Issues
PHP Version: 5.3.0alpha3 OS: linux
Private report: No CVE-ID: None
View Developer Edit
 [2009-01-16 03:26 UTC] shepnorfleet at verizon dot net 
Description:
------------
I would like to request the ability to place output at the front of the existing buffer.  I have placed an example CONOP in the 'Reproduce Code' section.  I did some experimentation with nesting but it doesn't seem to help me, please see the 'Expected Result' section to see if I understand it correctly.


Reproduce code:
---------------
<?
class Document {

...

function __destruct() 
{
      /*
       * By the time I get here the document has accumulated
       * javascript, and stylesheet includes.  My document
       * object ensures that these occur in the proper place
       * in the HTML document.
       */

      //New output goes to the front of the buffer.
      ob_insert(); 
      
      //write <html><head><title><style><script><body> tags
      $this->beginHTML(); 

      //Return to normal buffering mode
      ob_append(); 
      
      //write defered <script> and </body></html> tags
      $this->endHTML(); 

      ob_end_flush(); //All done
}
?>

Expected result:
----------------
<?

//Nesting doesn't seem to help
ob_start();
print "1";

ob_start();
print "2";
ob_end_flush();

print "3";
ob_end_flush();

?>

output is:
123

not: 
213

I need 213 not 123, see?

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 [2014-07-15 22:28 UTC] yohgaki@php.net
-Status: Open +Status: Wont fix -Package: Feature/Change Request +Package: *General Issues -Assigned To: +Assigned To: mike
 [2014-07-15 22:28 UTC] yohgaki@php.net 
This is how output buffer should work.
I understand use cases for this request. However, if you would like to insert/append data, you should insert/append during output, not into certain buffer. IMO. Please note that output buffer may flush automatically and the result is unpredictable. When whole data is buffered, appending data to parent buffer will be the same as inserting data. I don't think this feature is needed.

Mike might be interested in this feature. So I assigned this bug to him with wont fix status.
 
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