Using RewriteMap with a text file

- [Voiceover] RewriteMap is a really useful feature…that lets you map a list of name-value pairs to clean URLs…without the need for complex regular expressions.…In the previous chapter, we used a simple rewrite rule…to display the details of flower arrangements…in the example site by ending the clean URL…with the arrangements primary key.…So if I scroll down in the arrangements page,…and click one of the images,…it loads the details and the clean URL…ends simply with a number that's the ID.…

We can use RewriteMap to end the clean URL…with meaningful text rather than a number.…But the downside of RewriteMap is…that you can't register the map in an htaccess file.…It must be declared in the main Apache configuration file…or in the configuration file for virtual host.…So that may mean you can't use it in a hosting environment.…But anyway, let's take a look at how ReWriteMap works.…The simplest way to use RewriteMap is with a text file.…

So I'm going to switch to my editing program,…and I've got open generate_map.php,…