WordPress has a new debug plugin that allows super admins to access debugging information from WP admin bar.
Debug This is new WordPress plugin. It adds Debug This menu on WP admin bar showing various options to access debug information and summary, its only visible for to site administrators hence you don’t need another plugin for limiting access ;-) to this information to other users. See the given screenshot.
There Forty-nine debug modes included in this plugin, some of the important modes are:
- Post types
- Post attachments
- oEmbed providers
- Registered image sizes
- Menus, Widgets, Sidebars
- Variety of WP_Query modes
- Users (Current author, all users)
- Rendered page analysis (CSS, JS, Images)
- Variety of PHP modes (defined functions, constants, classes, phpinfo, etc)