How would I use the apc.filters parameter in APC opcode caching to not cache certain paths? For example, I want caching to be active for anything under the path:
"/var/www/vhosts"
and exclude paths like
"/usr/share/psa-horde/"
I tried using
apc.cache_by_default = 0
apc.filters = "+/var/www/vhosts"
and
apc.cache_by_default = 1
apc.filters = "-/usr/share/psa-horde/"
But neither worked as I expected.
http://www.php.net/manual/en/apc.configuration.php#ini.apc.filters
Should the filter be something more like "+/var/www/vhosts/*" (note the wildcard)? I'm afraid this isn't possible because of the way filters works:
Note that the filename used for matching is the one passed to include/require, not the absolute path.
Any ideas or sample configurations?
Answer
The filter should be a comma separated list of POSIX extended regular expressions. I believe what you have in the second attempt only matches the exact path /usr/share/psa-horde/, and not /usr/share/psa-horde/something or /usr/share/psa-horde/anotherfile.php
The following should match anything in the sub folder
apc.filters = "-/usr/share/psa-horde/.*"