PHP_FLAG output_buffering on .htaccess

I've got a few different PHP sites, running on a few different hosts.

I use a fairly 'standard' .htaccess on all the sites. I've noticed that one hosting system will crash with 500 Internal Server Error if I add the following:

PHP_FLAG output_buffering on

The log files on the server state:

Invalid command 'PHP_FLAG', perhaps mis-spelled or defined by a module not included in the server configuration

So, whats the deal? Can the ISP have PHP flags shut off or something? I did phpinfo() and scanned through there but nothing stood out.

Anyone got ideas? Ideally I would like to make it work, but if it would not crash the server it would be nice also.

 

Try php_value.

 

What actually php_flag output_buffering do?

i have this in htaccess:

<Ifmodule mod_php4.c>
        php_flag output_buffering  off
</Ifmodule>

<Ifmodule mod_php5.c>
        php_flag output_buffering  off
</Ifmodule>

Code (markup):

 

First thing: don't have stuff in your .htaccess file you don't know what does.
Second, Google is a pretty powerful search engine.
Third: it turns off output buffering. Output buffering, among other things, buffers the output before showing it to the user, and, among other things, allows for headers to be output after echoing content, for instance. Turning it off means the page is shown as it is built (while it outputs).

 

what does the output buffering means for me as a webmaster. and buffer is in memory?

 

Have a look here: http://www.php.net/manual/en/function.ob-start.php