Title: Warning: Parameter 2
Last modified: November 15, 2018

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# Warning: Parameter 2

 *  [jallalb](https://wordpress.org/support/users/jallalb/)
 * (@jallalb)
 * [7 years, 7 months ago](https://wordpress.org/support/topic/warning-parameter-2/)
 * Hello,
 * After installing the plugin I have the following message:
 * **Warning: Parameter 2 to get_post_type::hide hidden posts_where() expected to
   be a reference, value given in /htdocs/wp-includes/class-wp-hook.php on line 
   286**
 * I am under PHP 7.2.
 * Do you have a solution to this?
 * Thanks !

Viewing 2 replies - 1 through 2 (of 2 total)

 *  [Susan Totman](https://wordpress.org/support/users/smtotman/)
 * (@smtotman)
 * [7 years, 4 months ago](https://wordpress.org/support/topic/warning-parameter-2/#post-11167680)
 * Same issue here. We are PHP 7.1. Unfortunately, it completely breaks the site
   for use. 🙁
 *  [Aleksman](https://wordpress.org/support/users/aleksman/)
 * (@aleksman)
 * [7 years, 1 month ago](https://wordpress.org/support/topic/warning-parameter-2/#post-11473160)
 * There is a solution to solve this problem:
    in wp-content/plugins/opentickets-
   community-edition/inc/core/post-type.class.php:990 change
 * > public static function hide_hidden_posts_where($where, &$query)
 * to
 * > public static function hide_hidden_posts_where($where, $query)

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Warning: Parameter 2’ is closed to new replies.

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 * 2 replies
 * 3 participants
 * Last reply from: [Aleksman](https://wordpress.org/support/users/aleksman/)
 * Last activity: [7 years, 1 month ago](https://wordpress.org/support/topic/warning-parameter-2/#post-11473160)