How do I include a php.ini file in another php.ini file?

Question

How do I include a php.ini file in another php.ini file?

Answer 1

Actually YOU CAN. I just tested it on Debian 9 with PHP-FPM. From some .ini/.conf file, use this syntax:

include=/path/to/special-php.ini

or even

include=/path/to/special-dir-full-of-conf-files/*.conf 

as it is used in

/etc/php/7.0/fpm/php-fpm.conf
include=/etc/php/7.0/fpm/pool.d/*.conf

By the way, this will be most useful if you split your settings by topic, and or if you want a set for dev and another one for production. Then you could do it the Debian/Apache style like

/etc/php/conf-available/
/etc/php/conf-enabled/

with symliks from the second to the other and an include to that one.