How can I retrieve the path to the root directory in WordPress CMS?
For retrieving the path you can use a function . I do not want to just repeat what had been already said here, but I want to add one more thing:
If you are using windows server, which is rare case for WordPress installation, but still happens sometimes, you might face a problem with the path output. It might miss a "\" somewhere and you will get an error if you will be using such a path. So when outputting make sure to sanitize the path: