The RewriteMap directive lets you call on something external to help you do your rewriting. This can be a program, a database, or simply a file that lists the mappings. In this chapter, you’ll learn how to use this directive, and you’ll see a number of useful examples of the directive in action.
RewriteMap Syntax
The RewriteMap directive allows you to create a “function” that may be used later in RewriteCond and RewriteRule directives. The syntax of the function is as follows:
RewriteMap mapname maptype:maplocation
Once defined, this map may be used in any RewriteCond or RewriteRule directive:
RewriteRule (.*) ${mapname:$1| default}
The ...
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