Title: Illegal offset type [a warning]
Last modified: September 26, 2022

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# Illegal offset type [a warning]

 *  [UIUX Lab](https://wordpress.org/support/users/uiuxlab/)
 * (@uiuxlab)
 * [3 years, 8 months ago](https://wordpress.org/support/topic/illegal-offset-type-a-warning/)
 * After version 4.0.x, when debug mode is turned on, a warning will appear:
 * `Illegal offset type in isset or empty in wp-includes/class-wp-customize-manager.
   php`
 * Thanks.
 * ———My environment———
    WP: 6.0+ Kirki: 4.0+ PHP: 7.2+

The topic ‘Illegal offset type [a warning]’ is closed to new replies.

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 * 0 replies
 * 1 participant
 * Last reply from: [UIUX Lab](https://wordpress.org/support/users/uiuxlab/)
 * Last activity: [3 years, 8 months ago](https://wordpress.org/support/topic/illegal-offset-type-a-warning/)
 * Status: not resolved