Yes, this is correct.

If you look at sapi/apache2handler/sapi_apache2.c in PHP sources, you will
find that PHP SAPI registers it's function php_handler() within apache. This
function gets called every time PHP is requested by some client (with
appropriate configuration, of course).

I must admit that PHP-DEV (INTERNALS) seems more appropriate list for such
question :)


2010/8/20 Stanisław Findeisen <>

> Hi
> Could anyone please explain to me the basic architecture of PHP module
> when running "in process" within Apache HTTP server?
> I guess this is called "mod_php".
> As far as I understand the shared library (e.g., is being
> dynamically loaded by an Apache working process and then, whenever a
> .php (or .php3, or...) file is requested the working process calls the
> PHP interpreter. This call to the PHP interpreter is a function call and
> there is no fork(2) nor execve(2) in play at all.
> Is this correct?
> OpenPGP: DFD9 0146 3794 9CF6 17EA  D63F DBF5 8AA8 3B31 FE8A
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