I'm currently developing a Web application with `Zend Framework` and `PHP 5.3`. I have a `XML` file that contain configs and mapping information (+- 1500 lines). On each request I perform an `xpath` query to get information from that `XML` file. The information that is found in the `XML` file is static and do not change after the deployment of the application. 

It is a good practice to generated a php file that contain the `XML` information in a static arrays on the first request and then load that php file on every request to get the information instead of doing queries on the `XML`?