Title: Tracker debugger PHP Notices
Last modified: June 27, 2025

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# Tracker debugger PHP Notices

 *  Resolved [buddywhatshisname](https://wordpress.org/support/users/vhmarkgmailcom/)
 * (@vhmarkgmailcom)
 * [11 months, 1 week ago](https://wordpress.org/support/topic/tracker-debugger-php-notices/)
 * With version 14.14, the Tracker Debugger page
   /wp-admin/admin.php?page=wps_tracker-
   debugger_page—PHP Errors Detected in tracker.js
 * We found the following error:
   Warning
 * Type: Error
 * Message: Use of undefined constant WP_DEBUG – assumed ‘WP_DEBUG’ (this will throw
   an Error in a future version of PHP)
   —
 * insists on showing the above, even though I have made sure my wp-config.php contains:
   —
   define(‘WP_DEBUG’, 0);define(‘WP_DEBUG_DISPLAY’, 0);—Is this a bug in the plugin?

Viewing 2 replies - 1 through 2 (of 2 total)

 *  [Mehmet](https://wordpress.org/support/users/gandomi/)
 * (@gandomi)
 * [11 months, 1 week ago](https://wordpress.org/support/topic/tracker-debugger-php-notices/#post-18532014)
 * Hi [@vhmarkgmailcom](https://wordpress.org/support/users/vhmarkgmailcom/),
 * Thank you for your message.
 * It seems that this issue is not related to the WP Statistics plugin. The error
   suggests that the WP_DEBUG Constant is not being correctly recognised, often 
   due to incorrect quotation marks in `wp-config.php`.
 * Please make sure you’re using standard single quotes `'` like this:
 *     ```wp-block-code
       define('WP_DEBUG', false);define('WP_DEBUG_DISPLAY', false);
       ```
   
 * Sometimes using fancy quotes (e.g., `‘` or `’`) can cause this issue.
 * Hope this helps! Let us know if you have any other questions.
   Best regards,Mehmet
 *  Thread Starter [buddywhatshisname](https://wordpress.org/support/users/vhmarkgmailcom/)
 * (@vhmarkgmailcom)
 * [11 months, 1 week ago](https://wordpress.org/support/topic/tracker-debugger-php-notices/#post-18534553)
 * OK thanks I will dig around further.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Tracker debugger PHP Notices’ is closed to new replies.

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 * 2 replies
 * 2 participants
 * Last reply from: [buddywhatshisname](https://wordpress.org/support/users/vhmarkgmailcom/)
 * Last activity: [11 months, 1 week ago](https://wordpress.org/support/topic/tracker-debugger-php-notices/#post-18534553)
 * Status: resolved