So it appears that recent versions of apache (just upgraded) have removed the prefix ( apache/httpd@01d1fce ), but I am still having to ignore anything after a ? in the env_script_filename, but now just outside the if statements referenced in the patch.

char *p = strchr(env_script_filename, '?');
if (p) {
*p =0;
}

Without this somewhere, having a query string causes the file to not be found. Would this cause any problems with other web servers?

I made an change in haught@642de27 to still work with older Apache versions that use the prefixes, but now it will remove the query string from env_script_filename for any request from Apache rather then just if proxy:balancer:// or proxy:fcgi:// is detected.

This PR seems useful for old Apache version (ex 2.4.6 on RHEL-7)

But I'm a bit reluctant with the

 strncmp(env_server_software, "Apache", sizeof("Apache") - 1) == 0) {

I'm afraid of unexpected changes...
Have you use case where it is needed ? (outside of FPM)

Will prefer to really restreint this piece of code for proxy part (apache_was_here==1)

Comment on behalf of remi at php.net:

see http://git.php.net/?p=php-src.git;a=commit;h=07d2dcdf09fcfbd617031bd341384efb236de12c