How does nginx know about FastCGI's stderr?

[Maxim Dounin]

Hello!

On Mon, Mar 15, 2010 at 11:15:36AM +0800, 任晓磊 wrote:

> nginx's error.log says:
> 2010/03/15 11:13:15 [error] 10978#0: *10642 FastCGI sent in stderr:
> "PHP Deprecated:  Function ereg() is deprecated in
> /usr/local/cacti/lib/rrd.php on line 734
> PHP Deprecated:  Function ereg() is deprecated in
> /usr/local/cacti/lib/rrd.php on line 1020
> 
> 
> etc. But I don't know how nginx knows about FastCGI's stderr?

http://www.fastcgi.com/devkit/doc/fcgi-spec.html

Maxim Dounin