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Digg  ob_flush
Flush (send) the output buffer
(PHP 4 >= 4.2.0, PHP 5)
Code Examples / Notes » ob_flush24-jun-2005 02:27
You must call them in the correct order. ob_flush(); flush(); reynard hilman
when using command line php, if somewhere in your script you have ob_start(), you have to call ob_end_flush() first, and then you can call these functions: flush(); ob_flush(); without calling ob_end_flush first, flush and ob_flush does not have any effect, at least that's what I experienced. jeremy
we had problems with flushing data to the browser. a simple call to ob_flush() or flush() would not work. We found that repeatly calling theses fuctions did work however. <? flush(); ob_flush(); flush(); ob_flush(); flush(); ob_flush(); ?> go figure! solidli
Use an '@' sign as "@ob_flush();" to avoid the following message: Notice: ob_flush(): failed to flush buffer. No buffer to flush. in /etc/www/test.php on line 88 22-sep-2005 02:37
I was having problems with output buffering which seemed to be active by default on the server, although phpinfo said something else.. In any case I needed to know that when I ran ob_start, it would start at the top level, so I could use ob_flush as it's intended without having to call multiple ob_flush in-script - this is what I did: <?php // make sure output buffering is off before we start it // this will ensure same effect whether or not ob is enabled already while (ob_get_level()) { ob_end_flush(); } // start output buffering if (ob_get_length() === false) { ob_start(); } ?> Then I could call ob_flush(); followed by flush(); and get the output I wanted, which I didn't if I started the script with just ob_start(); This was on a windows apache 2 server with php 5.0.4 btw. 14-jan-2003 04:23
As far as I can tell the only way to mimic ob_flush()'s behaviour on PHP < 4.2.0 is calling ob_end_flush() followed by ob_start().
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