Title: Warning: implode(): Invalid arguments with empty checkboxes
Last modified: August 21, 2016

---

# Warning: implode(): Invalid arguments with empty checkboxes

 *  [max_Q](https://wordpress.org/support/users/max_q/)
 * (@max_q)
 * [12 years ago](https://wordpress.org/support/topic/warning-implode-invalid-arguments-with-empty-checkboxes/)
 * Hi,
 * I’m getting: Warning: implode(): Invalid arguments passed in /mysitepath.com/
   wp-content/plugins/contact-forms/accua-forms.php on lines 2783 and 2784
    case‘
   multiselect’: case ‘multicheckbox’: when no checkboxes are selected. I assume
   it’s because implode() is not being given an array when $value is empty. This
   workaround fixed it for me: `if (empty($value)) { $value = array(); }`
 * [https://wordpress.org/plugins/contact-forms/](https://wordpress.org/plugins/contact-forms/)

Viewing 1 replies (of 1 total)

 *  Plugin Author [cimatti](https://wordpress.org/support/users/cimatti/)
 * (@cimatti)
 * [12 years ago](https://wordpress.org/support/topic/warning-implode-invalid-arguments-with-empty-checkboxes/#post-4879916)
 * Thanks for the bug report!
 * I’ll add a couple of controls on the next version to avoid that warning

Viewing 1 replies (of 1 total)

The topic ‘Warning: implode(): Invalid arguments with empty checkboxes’ is closed
to new replies.

 * ![](https://ps.w.org/contact-forms/assets/icon.svg?rev=2947119)
 * [Contact Forms by Cimatti](https://wordpress.org/plugins/contact-forms/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/contact-forms/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/contact-forms/)
 * [Active Topics](https://wordpress.org/support/plugin/contact-forms/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/contact-forms/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/contact-forms/reviews/)

 * 1 reply
 * 2 participants
 * Last reply from: [cimatti](https://wordpress.org/support/users/cimatti/)
 * Last activity: [12 years ago](https://wordpress.org/support/topic/warning-implode-invalid-arguments-with-empty-checkboxes/#post-4879916)
 * Status: not resolved