Title: PHP Warning: Undefined array key “active_day”
Last modified: January 15, 2026

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# PHP Warning: Undefined array key “active_day”

 *  Resolved [Rachel](https://wordpress.org/support/users/jaxrachel/)
 * (@jaxrachel)
 * [4 months, 3 weeks ago](https://wordpress.org/support/topic/php-warning-undefined-array-key-active_day/)
 * In my logs I’m getting a PHP Warning: Undefined array key “active_day”
 * Also, maybe unrelated, when I go to a Show and edit anything about it at all,
   when I click “update”, all my active times are disabled (green to red) and I 
   have to go back in and manually uncheck the “disabled” box and re-save in order
   to turn them back on.

Viewing 5 replies - 1 through 5 (of 5 total)

 *  Plugin Author [Tony Zeoli](https://wordpress.org/support/users/tonyzeoli/)
 * (@tonyzeoli)
 * [4 months, 2 weeks ago](https://wordpress.org/support/topic/php-warning-undefined-array-key-active_day/#post-18789316)
 * We haven’t pushed a new version in a while, so my question is, how long has this
   been happening for you? We don’t have any other reports about the saving issue
   you’re experiencing,, so I’m wondering if the save issue is a plugin or theme
   conflict.
 * Have you tested in a staging environment by disabling all other plugins except
   Radio Station and attempting to save? Have you done the same by switching to 
   a standard WordPress theme to test?
 * There are some bug fixes we haven’t yet released in the “develop” version on 
   Github. You may want to use that version to update the plugin in staging and 
   see if that solves the issues.
 * While you take a look at those possibilities, I’ll check my install and get back
   to you shortly.
 *  Thread Starter [Rachel](https://wordpress.org/support/users/jaxrachel/)
 * (@jaxrachel)
 * [4 months, 1 week ago](https://wordpress.org/support/topic/php-warning-undefined-array-key-active_day/#post-18796604)
 * I’m not sure how long as I don’t normally work inside the shows. I tested on 
   a dev environment with all plugins deactivated except Radio Station and set to
   the default theme (2025), and it still had the issue. Shows > edit a show > type
   anything into any field (in other words, edit something besides the show times),
   and click Update, and when the page refreshed, all show times went from green
   to red (the “disabled” checkbox was checked).
 *  Plugin Author [Tony Zeoli](https://wordpress.org/support/users/tonyzeoli/)
 * (@tonyzeoli)
 * [3 months, 2 weeks ago](https://wordpress.org/support/topic/php-warning-undefined-array-key-active_day/#post-18822816)
 * Okay, let’s plug this into our Github repo and investigage further.
 *  Plugin Author [Tony Zeoli](https://wordpress.org/support/users/tonyzeoli/)
 * (@tonyzeoli)
 * [3 months, 1 week ago](https://wordpress.org/support/topic/php-warning-undefined-array-key-active_day/#post-18832968)
 * Are you still having this issue?
 *  Thread Starter [Rachel](https://wordpress.org/support/users/jaxrachel/)
 * (@jaxrachel)
 * [3 months, 1 week ago](https://wordpress.org/support/topic/php-warning-undefined-array-key-active_day/#post-18833505)
 * It’s not happening anymore! Yay. I can save and not have to go back and re-enable
   active times. And the PHP warning isn’t showing up in my recent logs either. 
   not sure if it’s because I haven’t done anything specific to trigger it.

Viewing 5 replies - 1 through 5 (of 5 total)

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 * 5 replies
 * 2 participants
 * Last reply from: [Rachel](https://wordpress.org/support/users/jaxrachel/)
 * Last activity: [3 months, 1 week ago](https://wordpress.org/support/topic/php-warning-undefined-array-key-active_day/#post-18833505)
 * Status: resolved