Title: php warning
Last modified: May 26, 2025

---

# php warning

 *  Resolved [roadlink](https://wordpress.org/support/users/roadlink/)
 * (@roadlink)
 * [1 year, 1 month ago](https://wordpress.org/support/topic/php-warning-539/)
 * Hi there,
   I am seeing this almost everday.
 *     ```wp-block-code
       Warning: Undefined array key "HTTP_REFERER" in /var/wordpress/wp-content/plugins/beetle-tracking/includes/Utils/Url.php on line 22
       ```
   

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Plugin Author [Rocket Beetle](https://wordpress.org/support/users/rocketbeetlecom/)
 * (@rocketbeetlecom)
 * [1 year, 1 month ago](https://wordpress.org/support/topic/php-warning-539/#post-18494985)
 * It has been solved in latest release
 *  Thread Starter [roadlink](https://wordpress.org/support/users/roadlink/)
 * (@roadlink)
 * [1 year ago](https://wordpress.org/support/topic/php-warning-539/#post-18499480)
 * thanks. These 2 are still there.
   Even after update.
 *     ```wp-block-code
        Jun 05, 16:01:00Warning: Undefined array key "HTTP_ACCEPT_LANGUAGE" in /var/wordpress/wp-content/plugins/beetle-tracking/includes/Utils/User.php on line 37 Jun 05, 16:01:01Warning: Undefined array key "HTTP_USER_AGENT" in /var/wordpress/wp-content/plugins/beetle-tracking/includes/Utils/User.php on line 35
       ```
   
 *  Thread Starter [roadlink](https://wordpress.org/support/users/roadlink/)
 * (@roadlink)
 * [1 year ago](https://wordpress.org/support/topic/php-warning-539/#post-18526911)
 * that issue is still there. fyi.

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘php warning’ is closed to new replies.

 * ![](https://ps.w.org/beetle-tracking/assets/icon-256x256.gif?rev=2996529)
 * [Beetle Tracking - Cloudflare Zaraz for WooCommerce](https://wordpress.org/plugins/beetle-tracking/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/beetle-tracking/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/beetle-tracking/)
 * [Active Topics](https://wordpress.org/support/plugin/beetle-tracking/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/beetle-tracking/unresolved/)
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 * 3 replies
 * 2 participants
 * Last reply from: [roadlink](https://wordpress.org/support/users/roadlink/)
 * Last activity: [1 year ago](https://wordpress.org/support/topic/php-warning-539/#post-18526911)
 * Status: resolved