[wp-trac] [WordPress Trac] #55415: Pluggable.php file is causing Fatal Errors

[WordPress Trac]

#55415: Pluggable.php file is causing Fatal Errors
-------------------------------+------------------------------
 Reporter:  ceceet             |       Owner:  (none)
     Type:  defect (bug)       |      Status:  new
 Priority:  normal             |   Milestone:  Awaiting Review
Component:  Plugins            |     Version:
 Severity:  major              |  Resolution:
 Keywords:  reporter-feedback  |     Focuses:
-------------------------------+------------------------------
Changes (by costdev):

 * keywords:   => reporter-feedback
 * component:  Upgrade/Install => Plugins


Comment:

 Hi @ceceet! Welcome to Trac and thanks for opening this ticket.

 Some additional info:
 - The UpdraftCentral plugin calls `wp_get_current_user()` in a `shutdown`
 callback.
 - See [https://plugins.trac.wordpress.org/browser/updraftcentral/trunk
 /site-management.php#L484 here for the call] and
 [https://plugins.trac.wordpress.org/browser/updraftcentral/trunk/site-
 management.php#L136here for the hook].
 - This has existed within the plugin for quite a long time.

 -----

 I created a small plugin to test calling `wp_get_current_user()` in a
 `shutdown` callback:

 {{{#!php
 <?php
 /**
  * Plugin Name: #55415 - `wp_get_current_user()` in a `shutdown` callback.
  * Description: Runs `wp_get_current_user()` in a `shutdown` callback.
  * Author: WordPress Contributors
  */

 add_action( 'shutdown', 'try_wp_get_current_user' );

 function try_wp_get_current_user() {
         wp_get_current_user();
 }
 }}}

 There was no Fatal Error on PHP 7.4 or PHP 8.0.
 -----
 @ceceet if you have any additional information from the plugin developers
 about how they determined that this is an issue within WordPress Core
 rather than the plugin, that would be a big help in determining how best
 to resolve this issue.

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/55415#comment:3>
WordPress Trac <https://core.trac.wordpress.org/>
WordPress publishing platform