ob_end_flush

Flush (send) the output buffer and turn off output buffering (PHP 4, PHP 5)
bool ob_end_flush ( )

Example 1684. ob_end_flush() example

The following example shows an easy way to flush and end all output buffers:

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<?php

  while (@ob_end_flush());
?>

Code Examples / Notes » ob_end_flush

kriek

ob_end_flush() isn't needed in MOST cases because it is called automatically at the end of script execution by PHP itself when output buffering is turned on either in the php.ini or by calling ob_start().

brett

It appears that you can call ob_end_flush() regardless of whether or not output buffering was ever started using ob_start(). This can prove useful because it saves you from having to create conditional statements based on whether a particular function or include file has started output buffering. You can simply call the ob_end_flush() anyway and if there's output in the buffer, it will be sent, otherwise your script will just keep on keepin' on.

skippy

Apart from being mostly redundant, ob_end_flush() can be downright damaging in some weird cases. Actual example: a particular page on an Intranet website which would appear blank on Internet Explorer 6 when ob_start('ob_gzhandler') was called in the beginning and ob_end_flush() at the end. We couldn't figure out what made that page special no matter what we tried. The ob_ functions were placed in scripts which were include()'d by all pages just the same, but only that page did this. Even stranger, the problem only appeared on direct browser/server connections. Whenever the connection passed through a proxy the problem dissapeared. I'm guessing some kind of HTTP encoding headers mumbo-jumbo. Solution: unless you really need it in particular cases, remove the ob_end_flush() call and rely on the builtin, automatic buffer flush.

jhannus

A note on the above example... with PHP 4 >= 4.2.0, PHP 5 you can use a combination of ob_get_level() and ob_end_flush() to avoid using the @ (error suppresion) which should probably be a little faaster. <?php while (ob_get_level() > 0) { ob_end_flush(); } ?>

Change Language

flush
ob_clean
ob_end_clean
ob_end_flush
ob_flush
ob_get_clean
ob_get_contents
ob_get_flush
ob_get_length
ob_get_level
ob_get_status
ob_gzhandler
ob_implicit_flush
ob_list_handlers
ob_start
output_add_rewrite_var
output_reset_rewrite_vars

ob_end_flush

Flush (send) the output buffer and turn off output buffering (PHP 4, PHP 5) bool ob_end_flush ( )

Example 1684. ob_end_flush() example

Code Examples / Notes » ob_end_flush

Change Language

Flush (send) the output buffer and turn off output buffering (PHP 4, PHP 5)
bool ob_end_flush ( )