Title: PHP Warning: Undefined array key “”
Last modified: January 11, 2025

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# PHP Warning: Undefined array key “”

 *  Resolved [Jenny](https://wordpress.org/support/users/enigma666666/)
 * (@enigma666666)
 * [1 year, 4 months ago](https://wordpress.org/support/topic/php-warning-undefined-array-key-23/)
 * Hi there,
 * I’ve been using your plugin for a few years and it works well, thank you. If 
   you can please advise how to correct this php warning which appears over and 
   over in my server log:
 * Got error ‘PHP message: PHP Warning: Undefined array key “” in /home/websitename/
   public_html/wp-content/plugins/woo-notification/frontend/notify.php on line 369;

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

 *  Plugin Author [CodeWooGeek](https://wordpress.org/support/users/codewoogeek/)
 * (@codewoogeek)
 * [1 year, 4 months ago](https://wordpress.org/support/topic/php-warning-undefined-array-key-23/#post-18238295)
 * Hello there,
 * Good Day!
 * We’re here to assist you with this one.
 * The error you mentioned in this support thread is not from our plugin but it 
   is a plugin of [https://wordpress.org/plugins/woo-notification/](https://wordpress.org/plugins/woo-notification/)
   please contact their support for the solution.
 * Thanks.
 *  Thread Starter [Jenny](https://wordpress.org/support/users/enigma666666/)
 * (@enigma666666)
 * [1 year, 4 months ago](https://wordpress.org/support/topic/php-warning-undefined-array-key-23/#post-18238307)
 * My apologies. You can delete this support topic

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

The topic ‘PHP Warning: Undefined array key “”’ is closed to new replies.

 * ![](https://ps.w.org/back-in-stock-notifier-for-woocommerce/assets/icon-256x256.
   gif?rev=3349374)
 * [Back In Stock Notifier for WooCommerce | WooCommerce Waitlist Pro](https://wordpress.org/plugins/back-in-stock-notifier-for-woocommerce/)
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 * 2 replies
 * 2 participants
 * Last reply from: [Jenny](https://wordpress.org/support/users/enigma666666/)
 * Last activity: [1 year, 4 months ago](https://wordpress.org/support/topic/php-warning-undefined-array-key-23/#post-18238307)
 * Status: resolved