Modules Unraveled Podcast

## Z-Ray  * So, let’s start out with the basics. What exactly is Z-Ray?     * So Z-Ray is a cool new tech that we introduced just a few months back which gives developers deep insight into all the PHP elements constructing their page, including Drupal-specific elements.      * It’s basically a toolbar that’s displayed right in front of you in your browser. No code changes needed. You don’t have to configure anything. Just open your app in a browser and you’ll see Z-Ray at the bottom of the page!    * How does is work? Is there a module that you have to install on your site?     * No. It’s not a module. Without going into too much detail: Z-Ray collects info while your app is being processed on the server side, and once the request is completed, Z-Ray’s JavaScript code is injected into the response with all the collected data.      * There are other mechanisms at work, such as Ajax support, but as a whole that’s all there is to it. It’s also the limit of my technical understanding of how it works :-)    * So w