Title: PHP Warning: call_user_func_array() expects parameter 1 to be a valid callback,
Last modified: July 18, 2020

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# PHP Warning: call_user_func_array() expects parameter 1 to be a valid callback,

 *  Resolved [matlabiir](https://wordpress.org/support/users/matlabiir/)
 * (@matlabiir)
 * [5 years, 10 months ago](https://wordpress.org/support/topic/php-warning-call_user_func_array-expects-parameter-1-to-be-a-valid-callback-8/)
 * logs:
 *     ```
       [18-Jul-2020 05:14:28 UTC] PHP Warning:  call_user_func_array() expects parameter 1 to be a valid callback, no array or string given in /home/matlabii/public_html/wp-includes/class-wp-hook.php on line 287
       [18-Jul-2020 05:14:49 UTC] PHP Warning:  call_user_func_array() expects parameter 1 to be a valid callback, no array or string given in /home/matlabii/public_html/wp-includes/class-wp-hook.php on line 287
       [18-Jul-2020 05:15:07 UTC] PHP Warning:  call_user_func_array() expects parameter 1 to be a valid callback, no array or string given in /home/matlabii/public_html/wp-includes/class-wp-hook.php on line 287
       ```
   
 * not removing with:
    Add to theme functions.php file:
 * `add_filter( 'wpseo_remove_reply_to_com', '__return_false' );`
 * in link: [https://wordpress.org/support/topic/php-warning-call_user_func_array-expects-parameter-1-to-be-a-valid-callback-3/](https://wordpress.org/support/topic/php-warning-call_user_func_array-expects-parameter-1-to-be-a-valid-callback-3/)
 * please help me
    -  This topic was modified 5 years, 10 months ago by [matlabiir](https://wordpress.org/support/users/matlabiir/).
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fphp-warning-call_user_func_array-expects-parameter-1-to-be-a-valid-callback-8%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 3 replies - 1 through 3 (of 3 total)

 *  [Rumejan](https://wordpress.org/support/users/onlyincebu/)
 * (@onlyincebu)
 * [5 years, 10 months ago](https://wordpress.org/support/topic/php-warning-call_user_func_array-expects-parameter-1-to-be-a-valid-callback-8/#post-13138874)
 * Hello [@matlabiir](https://wordpress.org/support/users/matlabiir/)!
 * Have you tried performing a conflict check? If you haven’t yet, please do so.
   The fastest way to do this is to **deactivate all non-Yoast plugins and switch
   to a standard theme** like [Twenty Nineteen](https://wordpress.org/themes/twentynineteen/).
 * Test this on your development or staging site, if you have one. If not, we recommend
   using the [Health Check & Troubleshooting](https://wordpress.org/plugins/health-check/)
   plugin. This plugin allows you to run a conflict check **without affecting normal
   visitors to your site**.
 * You may also follow our step-by-step guide that will walk you through the process:
   [How to check for plugin conflicts](https://kb.yoast.com/kb/how-to-check-for-plugin-conflicts/).
 *  [devnihil](https://wordpress.org/support/users/devnihil/)
 * (@devnihil)
 * [5 years, 10 months ago](https://wordpress.org/support/topic/php-warning-call_user_func_array-expects-parameter-1-to-be-a-valid-callback-8/#post-13167168)
 * We are going ahead and marking this issue as resolved due to inactivity. If you
   require any further assistance please create a new issue.
 *  Thread Starter [matlabiir](https://wordpress.org/support/users/matlabiir/)
 * (@matlabiir)
 * [5 years, 10 months ago](https://wordpress.org/support/topic/php-warning-call_user_func_array-expects-parameter-1-to-be-a-valid-callback-8/#post-13167303)
 * Hi
    Troubleshoot enable in Health Check & Troubleshooting plugin. But this error
   still occurs.

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘PHP Warning: call_user_func_array() expects parameter 1 to be a valid
callback,’ is closed to new replies.

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## Tags

 * [call_user_func_array](https://wordpress.org/support/topic-tag/call_user_func_array/)

 * 3 replies
 * 3 participants
 * Last reply from: [matlabiir](https://wordpress.org/support/users/matlabiir/)
 * Last activity: [5 years, 10 months ago](https://wordpress.org/support/topic/php-warning-call_user_func_array-expects-parameter-1-to-be-a-valid-callback-8/#post-13167303)
 * Status: resolved