   #PHP Manual Output Control Functions Output Control Functions ob_clean

   PHP Manual
   Prev  Next
   ______________________________________________________________________

                                     flush

   (PHP 3, PHP 4 )
   flush -- Flush the output buffer

Description

   void flush ( void )

   Flushes the output buffers of PHP and whatever backend PHP is using
   (CGI, a web server, etc). This effectively tries to push all the
   output so far to the user's browser.

   flush() has no effect on the buffering scheme of your webserver or the
   browser on the client side.

   Several servers, especially on Win32, will still buffer the output
   from your script until it terminates before transmitting the results
   to the browser.

   Server modules for Apache like mod_gzip may do buffering of their own
   that will cause flush() to not result in data being sent immediately
   to the client.

   Even the browser may buffer its input before displaying it. Netscape,
   for example, buffers text until it receives an end-of-line or the
   beginning of a tag, and it won't render tables until the </table> tag
   of the outermost table is seen.

   Some versions of Microsoft Internet Explorer will only start to
   display the page after they have received 256 bytes of output, so you
   may need to send extra whitespace before flushing to get those
   browsers to display the page.
   ______________________________________________________________________

   Prev                     Home     Next
   Output Control Functions  Up  ob_clean
