Conditional Statements in Apache .htaccess Files

Problem

I wanted to have only one .htaccess file for one site, but have it work differently in two different environments. (One being Apache 1.3, the other 2.0.)

Solution

By having a look at my Apache httpd.conf, I looked for a module that would most likely not be loaded on the remote host. In my case, I decided on mod_asapi.so. I then added the conditional statements like so:

# Turn on register_globals on local machine (turned on by default remotely)
<IfModule isapi_module>
	php_flag register_globals 1
</IfModule>

If you wanted something which worked only on the other machine, you could just use the ! operator to negate the test.