Title: Warning: call_user_func_array()
Last modified: January 25, 2023
---
# Warning: call_user_func_array()
* Resolved [redactionseomdri](https://wordpress.org/support/users/redactionseomdri/)
* (@redactionseomdri)
* [3 years, 4 months ago](https://wordpress.org/support/topic/warning-call_user_func_array-48/)
* Hello there, I did put a code in my function.php to install Google GTM. Here
is the code
* ```wp-block-code
function gtm_head(){
?>
*/
function gtm_body_open(){
?>
= $num_args ) {
$value = call_user_func_array( $the_['function'], $args );
} else {
$value = call_user_func_array( $the_['function'], array_slice( $args, 0, (int) $the_['accepted_args'] ) );
}
}
} while ( false !== next( $this->iterations[ $nesting_level ] ) );
unset( $this->iterations[ $nesting_level ] );
unset( $this->current_priority[ $nesting_level ] );
$this->nesting_level--;
return $value;
}
```
* Please can you tell me what to do with that ? 🙁 🙁 🙁
* What should I add ?
* I would be really thankful !!!
- This topic was modified 3 years, 4 months ago by [redactionseomdri](https://wordpress.org/support/users/redactionseomdri/).
* The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fwarning-call_user_func_array-48%2F%3Foutput_format%3Dmd&locale=en_US)
to see the link]_
Viewing 2 replies - 1 through 2 (of 2 total)
* [Jacob Peattie](https://wordpress.org/support/users/jakept/)
* (@jakept)
* [3 years, 4 months ago](https://wordpress.org/support/topic/warning-call_user_func_array-48/#post-16408662)
* The error is not in `class-wp-hook.php`. The error is caused by using `add_action()`
with a callback that doesn’t exist. The message appears in `class-wp-hook.php`
because that’s where it’s trying to run the callback.
* The specific reason you’re seeing this error is that you have an extra space
here:
* ```wp-block-code
add_action( 'wp_body_open', ' gtm_body_open', 1 );
```
* In front of `gtm_body_open`. Remove that and the error should go away.
* Thread Starter [redactionseomdri](https://wordpress.org/support/users/redactionseomdri/)
* (@redactionseomdri)
* [3 years, 4 months ago](https://wordpress.org/support/topic/warning-call_user_func_array-48/#post-16408702)
* Ok now I feel dumb…
* Thank you ! Resolved
Viewing 2 replies - 1 through 2 (of 2 total)
The topic ‘Warning: call_user_func_array()’ is closed to new replies.
## Tags
* [array](https://wordpress.org/support/topic-tag/array/)
* [code](https://wordpress.org/support/topic-tag/code/)
* [function](https://wordpress.org/support/topic-tag/function/)
* [php](https://wordpress.org/support/topic-tag/php/)
* In: [Developing with WordPress](https://wordpress.org/support/forum/wp-advanced/)
* 2 replies
* 2 participants
* Last reply from: [redactionseomdri](https://wordpress.org/support/users/redactionseomdri/)
* Last activity: [3 years, 4 months ago](https://wordpress.org/support/topic/warning-call_user_func_array-48/#post-16408702)
* Status: resolved
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