Title: PHP Warning: Undefined array key “captcha_code”
Last modified: January 30, 2026

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# PHP Warning: Undefined array key “captcha_code”

 *  Resolved [dimal](https://wordpress.org/support/users/dimalifragis/)
 * (@dimalifragis)
 * [2 months, 1 week ago](https://wordpress.org/support/topic/php-warning-undefined-array-key-captcha_code/)
 * Hi,
 * Any ideas what this could be?
 * [30-Jan-2026 15:45:59 UTC] PHP Warning: Undefined array key “captcha_code” in
   /
   home/wp-content/
 * Thanks

Viewing 1 replies (of 1 total)

 *  Plugin Author [Alexandru Tapuleasa](https://wordpress.org/support/users/talextech/)
 * (@talextech)
 * [2 months, 1 week ago](https://wordpress.org/support/topic/php-warning-undefined-array-key-captcha_code/#post-18807512)
 * Hi,
 * That PHP warning is cut off … usually there were a few more details that indicate
   where the undefined array key is actually occuring. If you can copy/paste the
   full message we will have a look and see why it might be coming up.

Viewing 1 replies (of 1 total)

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 * ![](https://ps.w.org/captcha-code-authentication/assets/icon-256x256.png?rev=
   3013521)
 * [Captcha Code](https://wordpress.org/plugins/captcha-code-authentication/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/captcha-code-authentication/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/captcha-code-authentication/)
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 * [Unresolved Topics](https://wordpress.org/support/plugin/captcha-code-authentication/unresolved/)
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 * 1 reply
 * 2 participants
 * Last reply from: [Alexandru Tapuleasa](https://wordpress.org/support/users/talextech/)
 * Last activity: [2 months, 1 week ago](https://wordpress.org/support/topic/php-warning-undefined-array-key-captcha_code/#post-18807512)
 * Status: resolved