Plugin Directory

Debug This

This plugin gives WordPress super admins an easy way to peek under the hood of the front-face of a WordPress installation via the admin bar.


Debug This Functions

New debug modes can be created easily:

    $group = 'General'


    __('Actions', 'debug-this'),
    __('$wp_actions contains all active registered actions', 'debug-this'),
    'Filters And Actions'
function foo_callback($buffer, $template){
    global $wp_actions;
    $debug = print_r($wp_actions, true);
    return $debug;

You can add links to the header of a debug mode page. Place this code within your debug callback function.

add_debug_header_link('http://urltolink', 'Link Label');

Extensions can be removed as well using remove_debug_extension($mode);

No PRE Tags

If you don't want your debug output to be enclosed in PRE tags, simply set the following in your extension:

Debug_This::$no_pre = true;

Saved Queries and Execution Time

Retrieve saved queries and execution time by using the following static properties:

  • Debug_This::$execution_time
  • Debug_This::$queries - SAVEQUERIES must defined as true

URL Helpers

  • Debug_This::get_current_debug_url() - current URL with the debug query
  • Debug_This::get_escape_url() - used for the debug escape link that links to original page URL

WP Actions

  • debug_this - receives the $mode arg - outputs the debug code sent from the extension modes. The default action is set to priority 5. This allows you to prepend or append any output without conflict using less or greater priorities.

WP Filters

There are a few filters you can use to customize Debug This to your needs:

  • debug_this_template - receives $template arg - Use your own template
  • debug_this_default_mode - receives $mode arg - Alters the mode for the parent DT admin bar button link.
  • debug_this_output - receives $output, $mode args - Filter debug content before it's rendered


To access the built-in Debug This JS functionality, enqueue your custom script with the dependency set to debug-this. Your script will inherit a jQuery dependency.

Object: debugThis

  • debugThis.mode - current mode
  • debugThis.defaultMode
  • debugThis.template - current included template
  • debugThis.queryVar - the defined query string variable


  • isDebug()
  • getDebugMode() - uses isDebug()


A jQuery debug-this event is fired from the footer. You can hook into this event with the following;

jQuery(document).bind('debug-this', function(event, debugThis){

Helper Functions

There are three included functions to help you work with files.

  • debug_this_get_file_ownership($file) - returns array('name' => $name, 'group' => $group)
  • debug_this_get_file_perms($file) - returns string - Example: 0775
  • debug_this_convert_perms_to_rwx($perms) - returns string - converts permission number to RWX format - Example: 0755 folder becomes drwxr-xr-x


  • Add menu item to wp-admin admin bar
  • Add administration page for default mode, query var, etc...

Requires: 3.3 or higher
Compatible up to: 4.1.1
Last Updated: 2015-3-17
Active Installs: 2,000+


5 out of 5 stars


2 of 2 support threads in the last two months have been resolved.

Got something to say? Need help?


Not enough data

1 person says it works.
0 people say it's broken.

100,1,1 100,1,1 100,1,1 100,1,1 100,1,1
100,1,1 100,1,1