Title: [Forms] Nested Conditional Fields
Last modified: June 29, 2018

---

# [Forms] Nested Conditional Fields

 *  [tizeta](https://wordpress.org/support/users/tizeta/)
 * (@tizeta)
 * [7 years, 11 months ago](https://wordpress.org/support/topic/forms-nested-conditional-fields/)
 * Asking just to be sure that it’s not a bug.
    I just upgraded from 1.3.88 to 2.0.17.
   You did a good job, everything went fine.
 * I need 2 nested levels of conditional fields, like in this example:
 * **Question 1:**
    Checkbox A Checkbox B Checkbox C
 * If `Checkbox C` is checked, show `Question 2`
 * **Question 2:**
    Checkbox D Checkbox E Checkbox F
 * If `Checkbox F` is checked, show `Question 3`
 * **Question 3:**
    Fill this textbox
 * All questions (1,2,3) are marked as required.
 * If I publish the form only with `Question 1` and `Question 2`, everything is 
   fine.
 * When I insert `Question 3`, I get the following errors:
 *     ```
       Warning: strstr() expects parameter 1 to be string, array given in /home/mysite/myurl/wp-content/plugins/ultimate-member/includes/core/um-filters-fields.php on line 433
   
       Warning: strstr() expects parameter 1 to be string, array given in /home/mysite/myurl/wp-content/plugins/ultimate-member/includes/core/um-filters-fields.php on line 433
   
       Warning: strstr() expects parameter 1 to be string, array given in /home/mysite/myurl/wp-content/plugins/ultimate-member/includes/core/um-filters-fields.php on line 433
   
       Warning: strstr() expects parameter 1 to be string, array given in /home/mysite/myurl/wp-content/plugins/ultimate-member/includes/core/um-actions-form.php on line 379
       ```
   
 * This is repeated for 8 times
    -  This topic was modified 7 years, 11 months ago by [tizeta](https://wordpress.org/support/users/tizeta/).

The topic ‘[Forms] Nested Conditional Fields’ is closed to new replies.

 * ![](https://ps.w.org/ultimate-member/assets/icon-256x256.png?rev=3160947)
 * [Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin](https://wordpress.org/plugins/ultimate-member/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/ultimate-member/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/ultimate-member/)
 * [Active Topics](https://wordpress.org/support/plugin/ultimate-member/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/ultimate-member/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/ultimate-member/reviews/)

## Tags

 * [conditional](https://wordpress.org/support/topic-tag/conditional/)
 * [Conditional Fields](https://wordpress.org/support/topic-tag/conditional-fields/)
 * [form](https://wordpress.org/support/topic-tag/form/)
 * [nested](https://wordpress.org/support/topic-tag/nested/)

 * 0 replies
 * 1 participant
 * Last reply from: [tizeta](https://wordpress.org/support/users/tizeta/)
 * Last activity: [7 years, 11 months ago](https://wordpress.org/support/topic/forms-nested-conditional-fields/)
 * Status: not resolved