Wrong SCRIPT_FILENAME & PHP_SELF in Apache 2.4.26

Question

With Apache 2.4.26 using php-fpm 7.1.6, $_SERVER['SCRIPT_FILENAME'] (and $_SERVER['PHP_SELF']) is incorrect on a folder:

Apache 2.4.26:

/index.php

Apache 2.4.25:

/myfolder/index.php

What is wrong?

Drislane

Answer 1

I fixed it in apache config with this new config directive :

ProxyFCGIBackendType GENERIC

In global configuration before the SetHandler directive. Default is FPM, but it's not correct with some php-fpm configuration (SetHandler and socket).

With this bug all $_SERVER['SCRIPT_FILENAME'] and $_SERVER['PHP_SELF'] Apache vars ($_SERVER) (injected from php-fpm) are wrong, they don't have the path!

ProxyFCGIBackendType is default to FPM but it's wrong for many configuration. Apache httpd should add GENERIC as default to don't break websites.

See: https://httpd.apache.org/docs/2.4/en/mod/mod_proxy_fcgi.html#proxyfcgibackendtype

Drislane

FWIW they are aware of it and working on it for next version. – Fount

Worked for me as well. Added it at the top of the etc/sites-available file – Innerve

Do you know how i fix/change this inside a puphpet/vagrant setup? – Southernly

@Michael: Add it to your .htaccess or to PuPHPet's Virtual Host-Level Custom Directives. – Mezcaline

@Mezcaline Thank you, adding it to the htaccess works. But i dont understand what/where i have to change it in "PuPHPet's Virtual Host-Level Custom Directives". Do you mean the config.yaml or one of the files in the puphpet folder? – Southernly

Ok i found it. Its puphpet/puppet/modules/apache/templates/httpd.conf.erb – Southernly

Answer 2

(This would be better as a comment, but I'm under the minimum rep.)

Like neoteknic points out in their answer, using the GENERIC backend type will revert you to 2.4.25 behavior while we get this bug worked out.

Note, however, that the 2.4.25 behavior breaks some other people too and is not a panacea. If you're in a bind, the new ProxyFCGISetEnvIf directive can give you direct control over FCGI envvars, and it accepts httpd expression syntax for some pretty complex manipulations, if you need them. This only helps if you understand what those envvars are supposed to be, but it's another option.

Godewyn