Title: Undefined array key
Last modified: June 17, 2022

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# Undefined array key

 *  [thomastolkien](https://wordpress.org/support/users/thomastolkien/)
 * (@thomastolkien)
 * [3 years, 11 months ago](https://wordpress.org/support/topic/undefined-array-key-9/)
 * Hi we’re seeing the following errors in the plugin options screen below the checkboxes
   for custom css and conditional css.
 * Below custom css:
    Warning: Undefined array key “use_custom” in \wp-content\plugins\
   multi-column-tag-map\mctagmap-options.php on line 150
 * Below conditional css:
    Warning: Undefined array key “use_conditional” in \wp-
   content\plugins\multi-column-tag-map\mctagmap-options.php on line 179
 * Both issues resolve if we add some custom and conditional css, tick the boxes
   and save.
 * However, if either box is left blank or unticked, the issue remains.
 * Our server is using PHP8.1 and we’ve tested with 2020 theme and no plugins.
 * It’s not desperately serious, but it does output an error to the server log file
   every time it’s encountered.

Viewing 1 replies (of 1 total)

 *  Plugin Author [tugbucket](https://wordpress.org/support/users/tugbucket/)
 * (@tugbucket)
 * [3 years, 11 months ago](https://wordpress.org/support/topic/undefined-array-key-9/#post-15768724)
 * [@thomastolkien](https://wordpress.org/support/users/thomastolkien/) Good catch.
   That feature hasn’t been touched in years so an easy oversight. Easy enough fix.
   I’ll get it out in the next release.

Viewing 1 replies (of 1 total)

The topic ‘Undefined array key’ is closed to new replies.

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 * 1 reply
 * 2 participants
 * Last reply from: [tugbucket](https://wordpress.org/support/users/tugbucket/)
 * Last activity: [3 years, 11 months ago](https://wordpress.org/support/topic/undefined-array-key-9/#post-15768724)
 * Status: not resolved