Update documentation with FallbackResource.

[malkusch]

Apache encourages the use of FallbackResource instead of a rewrite rule.

[martinbean]

Hi Markus. Do you have link to a resource where Apache encourages the use of FallbackResource instead of a RewriteRule?

[malkusch]

http://httpd.apache.org/docs/trunk/rewrite/remapping.html#fallback-resource

As of version 2.2.16, you should use the FallbackResource directive for this

[martinbean]

Neat tip, but I’m not comfortable with lowering the barrier of entry for users of ToroPHP by providing documentation that excludes users of older versions of Apache. Thoughts, @anandkunal?

[malkusch]

This feature is 4 years old. There exists no maintained version which doesn't support that feature. Apache is not that kind of software you want to run a unmaintained version. Anyways… your decision.

[martinbean]

If that’s the case and Apache >= 2.2.16 is in widespread use, then happy to mention it in documentation.

As I say, neat feature and I’ll look to use it myself in any Apache-hosted PHP apps (I work a lot with nginx these days), so thanks for bringing it to my attention!

[khromov]

There exists a large userbase of older Apache installations - all CentOS 6 machines are running Apache/2.2.15

[root@s3 ~]# httpd -v
Server version: Apache/2.2.15 (Unix)

CentOS 6 and its commercial brother Red Hat Enterprise Linux are well-maintained and have over 30% market share amongst UNIX OS'es.
http://w3techs.com/technologies/details/os-linux/all/all

Apache actually errors out with an Internal Server Error when you use the FallbackResource.

I vote to revert the documentation change, since I think a large portion of web hosts can't use this. (Certainly not any vanilla CentOS or Red Hat installations.)

[martinbean]

This was exactly my hesitancy for merging this pull request. I’ll revert back at my earliest convenience, unless someone gets there before me.

[khromov]

Thanks Martin.

I think the FallBack directive is actually excellent and elegant, and should be part of the documentation. But it should be alongside with the older, more supported method.

[malkusch]

CentOS 6 and its commercial brother Red Hat Enterprise Linux are well-maintained

Regarding that mentioned market share. I really hope "well-maintained" means they distribute a patched 2.2.15 version with those 2.2.x upstream patches: http://httpd.apache.org/security/vulnerabilities_22.html

I just found that one: http://w3techs.com/technologies/details/ws-apache/2.2/all
It shows sadly that 2.2.15 is about the median of all used 2.2 version. So, yes I agree keep that RewriteRule. I'd suggest to mention that FallbackResource as well for people with a more recent apache.