Title: PHP Warning call_user_func_array() expects parameter 1
Last modified: September 1, 2016

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# PHP Warning call_user_func_array() expects parameter 1

 *  [Mayeenul Islam](https://wordpress.org/support/users/wzislam/)
 * (@wzislam)
 * [9 years, 10 months ago](https://wordpress.org/support/topic/php-warning-call_user_func_array-expects-parameter-1/)
 * Warning is filling `error_log` on every page load due to easing slider 3.0.8.
   I’m using the `easingslider()` function conditionally, for my slider region in
   home page. But the warning is logged in on every page iteration. Some how the
   error’s coming from Core Easing Slider.
 * > PHP Warning: call_user_func_array() expects parameter 1 to be a valid callback,
   > no array or string given in /path/to/public_html/wp-includes/plugin.php on 
   > line 525
 * I’d recommend you to use “Debug Bar” plugin with “Developer” and related plugin
   for debugging the issue. The “Log Viewer” plugin is best for catching such problem.
 * Good luck for a quick fix.
 * [https://wordpress.org/plugins/easing-slider/](https://wordpress.org/plugins/easing-slider/)

Viewing 1 replies (of 1 total)

 *  Plugin Author [MatthewRuddy](https://wordpress.org/support/users/matthewruddy/)
 * (@matthewruddy)
 * [9 years, 10 months ago](https://wordpress.org/support/topic/php-warning-call_user_func_array-expects-parameter-1/#post-7587369)
 * Hi Mayeenul. We develop the plugin with Debug Bar & Log Viewer enabled. We aren’t
   getting this error.
 * The error quoted also doesn’t make any reference to Easing Slider directly. Could
   this be related to your conditional code, the theme or another plugin?
 * I’d recommend using the default Twenty Fifteen theme with only Easing Slider 
   activated to try and replicate the error. If it’s gone, you can enable the other
   plugins you have active sequentially until the error occurs again. From there,
   we can begin debugging.

Viewing 1 replies (of 1 total)

The topic ‘PHP Warning call_user_func_array() expects parameter 1’ is closed to 
new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/easing-slider_262626.svg)
 * [Easing Slider](https://wordpress.org/plugins/easing-slider/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/easing-slider/#faq)
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 * [Unresolved Topics](https://wordpress.org/support/plugin/easing-slider/unresolved/)
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## Tags

 * [PHP Warning](https://wordpress.org/support/topic-tag/php-warning/)

 * 1 reply
 * 2 participants
 * Last reply from: [MatthewRuddy](https://wordpress.org/support/users/matthewruddy/)
 * Last activity: [9 years, 10 months ago](https://wordpress.org/support/topic/php-warning-call_user_func_array-expects-parameter-1/#post-7587369)
 * Status: not resolved