Title: PHP Fatal error (PHP 8.1): eos-deactivate-plugins.php
Last modified: April 12, 2022

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# PHP Fatal error (PHP 8.1): eos-deactivate-plugins.php

 *  Resolved [Joe](https://wordpress.org/support/users/joewa1980/)
 * (@joewa1980)
 * [4 years, 2 months ago](https://wordpress.org/support/topic/php-fatal-error-php-8-1-eos-deactivate-plugins-php/)
 * Hi Jose! I hope you’re well. We’re experiencing a PHP Fatal error in our server
   error log – it appears to be since moving to PHP 8.1.
 * I’ve so far been unable to narrow down when the error occurs, but it’s potentially
   when a user logs in or accesses something that’s a user specific part of the 
   site.
 * It is of course possibly unrelated to FDP but as the mu-plugin is mentioned in
   the Stack trace I thought it might be of interest:
 *     ```
       [12-Apr-2022 07:08:40 UTC] PHP Fatal error:  Uncaught Error: Call to undefined function wp_get_current_user() in /website.com/wp-includes/capabilities.php:693
       Stack trace:
       #0 /website.com/wp-includes/functions.php(3481): current_user_can('unfiltered_html')
       #1 /website.com/wp-includes/formatting.php(2050): get_allowed_mime_types()
       #2 /website.com/wp-content/mu-plugins/eos-deactivate-plugins.php(1666): sanitize_file_name('sitename')
       #3 /website.com/wp-content/mu-plugins/eos-deactivate-plugins.php(218): eos_dp_get_opts_by_url('website.com/...')
       #4 /website.comk/wp-settings.php(349): include_once('/website.com/...')
       #5 /website.com/wp-config.php(176): require_once('/website.com/...')
       #6 /website.com/wp-load.php(50): require_once('/website.com/...')
       #7 /website.com/wp-blog-header.php(13): require_once('/website.com/...')
       #8 /website.com/index.php(17): require('/website.com/...')
       #9 {main}
         thrown in /website.com/wp-includes/capabilities.php on line 693
       ```
   

Viewing 9 replies - 1 through 9 (of 9 total)

 *  Plugin Author [Jose Mortellaro](https://wordpress.org/support/users/giuse/)
 * (@giuse)
 * [4 years, 2 months ago](https://wordpress.org/support/topic/php-fatal-error-php-8-1-eos-deactivate-plugins-php/#post-15550571)
 * Hi [@joewa1980](https://wordpress.org/support/users/joewa1980/)
 * thank you for reporting this issue.
 * I don’t think this fatal error is related to PHP 8.1.
 * The fatal error is surely caused by FDP, but only because it calls the function
   sanitize_file_name, which is a WordPress core function.
 * That function calls other functions, and when wp_get_current_user is called, 
   you have the fatal error, because it doesn’t exist at the point of the WP flow
   where it’s called.
    I suspect the error is triggered when FDP calls sanitize_file_name
   for requests that are not normal page loads. Do you maybe use WP CLI?
 * If you can find the situation that triggers the fatal error it would be great.
 * In any case, here you will find version 1.8.9.3-beta.1 that should fix this problem:
   [https://downloads.wordpress.org/plugin/freesoul-deactivate-plugins.1.8.9.3-beta.1.zip](https://downloads.wordpress.org/plugin/freesoul-deactivate-plugins.1.8.9.3-beta.1.zip)
 * Would it be possible for you to test it? It should not give problems, the only
   difference with the official version is the replacement of sanitize_file_name
   with a function provided by FDP. I’ve done some tests and it seems it doesn’t
   create issues, but if you test the beta version, have a look at the pages where
   you have deactivated plugins with the Singles settings.
 * Let me know if you still have the same fatal error in the log file if you try
   1.8.9.3-beta.1.
 *  Thread Starter [Joe](https://wordpress.org/support/users/joewa1980/)
 * (@joewa1980)
 * [4 years, 1 month ago](https://wordpress.org/support/topic/php-fatal-error-php-8-1-eos-deactivate-plugins-php/#post-15552061)
 * Thanks for your quick work on this [@giuse](https://wordpress.org/support/users/giuse/)–
   we’ve installed it and will give it some time to see how our users interact with
   the site, and attempt to monitor what’s happening.
 *  Thread Starter [Joe](https://wordpress.org/support/users/joewa1980/)
 * (@joewa1980)
 * [4 years, 1 month ago](https://wordpress.org/support/topic/php-fatal-error-php-8-1-eos-deactivate-plugins-php/#post-15552674)
 * 3hrs later and we’ve seen several instances of the error show up unfortunately.
 * > I suspect the error is triggered when FDP calls sanitize_file_name for requests
   > that are not normal page loads. Do you maybe use WP CLI?
 * – I don’t use WP CLI.
    – Could you think of what “requests that are not normal
   page loads” might be?
 * We have almost the same setup (plugins, theme, snippets, settings) on another
   website for a different geographical market and don’t see the same error, so 
   your comment about it not being a PHP 8.1 fault seems correct. I don’t know what
   is different on site 1 that is causing this!
 *  Thread Starter [Joe](https://wordpress.org/support/users/joewa1980/)
 * (@joewa1980)
 * [4 years, 1 month ago](https://wordpress.org/support/topic/php-fatal-error-php-8-1-eos-deactivate-plugins-php/#post-15552793)
 * Unrelated to the above issue, but a PHP 8.1 PHP warning for you:
 * `PHP Warning: Undefined variable $loc in /mywebsite.com/wp-content/plugins/freesoul-
   deactivate-plugins/admin/templates/pages/eos-dp-terms-archive.php on line 84`
 *  Plugin Author [Jose Mortellaro](https://wordpress.org/support/users/giuse/)
 * (@giuse)
 * [4 years, 1 month ago](https://wordpress.org/support/topic/php-fatal-error-php-8-1-eos-deactivate-plugins-php/#post-15553452)
 * Hi [@joewa1980](https://wordpress.org/support/users/joewa1980/)
 * really sorry. I’ve uploaded the wrong mu-plugin. Version 1.8.9.3-beta.1 still
   had the function sanitize_file_name instead of that one provided by FDP.
 * Now you have the right one, you should download 1.8.9.3-beta.2 [https://downloads.wordpress.org/plugin/freesoul-deactivate-plugins.1.8.9.3-beta.2.zip](https://downloads.wordpress.org/plugin/freesoul-deactivate-plugins.1.8.9.3-beta.2.zip).
   It fixes also the PHP warning “Undefined variable $loc…”. Also, this last warning
   didn’t depend on PHP 8. You had it also with older PHP versions.
 * If you don’t use WP CLI, maybe they are Ajax requests that don’t call the file
   wp-admin/admin-ajax.php, or maybe Rest API requests to URLs like [https://your-domain.com/wp-json/&#8230](https://your-domain.com/wp-json/&#8230);
 *  Thread Starter [Joe](https://wordpress.org/support/users/joewa1980/)
 * (@joewa1980)
 * [4 years, 1 month ago](https://wordpress.org/support/topic/php-fatal-error-php-8-1-eos-deactivate-plugins-php/#post-15554117)
 * That’s great – I’ll let you know how it goes, I’m sure it’ll be fine.
 *  Plugin Author [Jose Mortellaro](https://wordpress.org/support/users/giuse/)
 * (@giuse)
 * [4 years, 1 month ago](https://wordpress.org/support/topic/php-fatal-error-php-8-1-eos-deactivate-plugins-php/#post-15554847)
 * Thank you Joe. If you want you can update to the official version 1.8.9.3.
    I
   wasn’t able to reproduce the same issue, but because it’s a fatal error I preferred
   to publish the new version with the fix.
 * [@joewa1980](https://wordpress.org/support/users/joewa1980/)
 *  Thread Starter [Joe](https://wordpress.org/support/users/joewa1980/)
 * (@joewa1980)
 * [4 years, 1 month ago](https://wordpress.org/support/topic/php-fatal-error-php-8-1-eos-deactivate-plugins-php/#post-15555939)
 * Thanks for the quick work [@giuse](https://wordpress.org/support/users/giuse/)!
   We’ve not seen the fatal error since installing the new version.
 *  Plugin Author [Jose Mortellaro](https://wordpress.org/support/users/giuse/)
 * (@giuse)
 * [4 years, 1 month ago](https://wordpress.org/support/topic/php-fatal-error-php-8-1-eos-deactivate-plugins-php/#post-15555994)
 * perfect! Many thanks for the confimration.
    Have a great day
 * Jose
    [@joewa1980](https://wordpress.org/support/users/joewa1980/)

Viewing 9 replies - 1 through 9 (of 9 total)

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 * 9 replies
 * 2 participants
 * Last reply from: [Jose Mortellaro](https://wordpress.org/support/users/giuse/)
 * Last activity: [4 years, 1 month ago](https://wordpress.org/support/topic/php-fatal-error-php-8-1-eos-deactivate-plugins-php/#post-15555994)
 * Status: resolved