Finding the path of a specific WordPress install

Question

I have recently taken over a WordPress website.

Once I got access to the server I found that there were more than 70 installations of WordPress spread across it (files and DBs).

What is the quickest/easiest way for me to determine which installation is the one that is running the actual live website?

I thought of putting a PHP file into each installation (a file that echoed something along the lines of $_SERVER['PHP_SELF'];) - then try and access that file from the site itself, from there I know which installation is the correct one (I can then work out which DB is the correct one from the wp-config).

But surely there is an easier way? I have access to wp-admin, is there anything I can do in there to show me the base install path of this particular WordPress?

Answer 1

If you haven't already figured this out, as you have admin access to the dashboard, just go into Appearance->Theme Editor then add some PHP into the theme's footer.php or functions.php to echo out the location of the install on the server.