Prevent FPM tests from failing due to expose_php

[dwxh]

If a php.ini is installed in $PREFIX containing expose_php = off, a number of FPM tests fail due to a missing-but-expected X-Powered-By header. This change injects an "expose_php = on" into the fpm pool config.

This fails to fix one test - sapi/fpm/tests/status-listen.phpt - which continues to fail as the status pool doesn't pick up php_flag options from the fpm pool config. I'll see about applying php_ flags/values to the status pool, but leave that for a separate pull request as it's a more significant change.

[cmb69]

Thanks for the PR! I don't know much about FPM, but would it be possible and sensible to use a --INI-- section to set this directive?

[dwxh]

I don't think that would work - this is getting injected into the config for a new FPM pool rather than the tester's php process, and I don't think it gets inherited.

I did try:

--TEST--
FPM: Status basic test
--INI--
expose_php=On

And that didn't do it, but it's possible I got the syntax wrong?

[cmb69]

And that didn't do it, but it's possible I got the syntax wrong?

No, the syntax should be okay. So we likely want to stick with updating the FPM configuration.

[bukka]

Thanks for reporting this and trying to fix it. I went for slightly less invasive version at the end but good that you tried this because it showed the problem with status_listen shared pool. Will comment on it in that other PR.