How to check if the current ProcessWire request is in the admin/CMS

I recently had some ProcessWire code that needed to run on the front and back end but I needed to run slightly different logic on each. Here’s how I did it:

if (strpos($_SERVER['REQUEST_URI'], $config->urls->admin) === 0) {

    return;

}

The most reliable way is to check the request for your admin path (which defauls to /processwire/). By using $config->urls->admin it will work even if you have changed the admin path.

All it does is check if the current path starts with (including the trailing slash) the admin path.