Title: Call to undefined function _wp_get_current_user() Last modified: January 12, 2023 --- # Call to undefined function _wp_get_current_user() * Resolved [wearedigiwolf](https://wordpress.org/support/users/wearedigiwolf/) * (@wearedigiwolf) * [3 years, 5 months ago](https://wordpress.org/support/topic/call-to-undefined-function-_wp_get_current_user/) * Getting the below error currently – I have replaced the URL with mysite.com as it’s a business website. I came across a similar reference to it [here](https://wordpress.org/support/topic/php-fatal-error-uncaught-error-call-to-undefined-function-_wp_get_current_use/) but there is no solution. * PHP Fatal error:  Uncaught Error: Call to undefined function _wp_get_current_user() in /var/www/mysite.com/html/wp-includes/pluggable.php:70\nStack trace:\n#0 /var/ www/mysite.com/html/wp-includes/pluggable.php(1148): wp_get_current_user()\n# 1 /var/www/mysite.com/html/wp-content/plugins/wp-optimize-premium/cache/file- based-page-cache-functions.php(36): is_user_logged_in()\n#2 [internal function]: wpo_cache()\n#3 {main}\n  thrown in /var/www/mysite.com/html/wp-includes/pluggable. php on line 70, referer: mysite.com Viewing 2 replies - 1 through 2 (of 2 total) * Plugin Support [vupdraft](https://wordpress.org/support/users/vupdraft/) * (@vupdraft) * [3 years, 5 months ago](https://wordpress.org/support/topic/call-to-undefined-function-_wp_get_current_user/#post-16371839) * Can you try deactivating your other plugins and switching to a default theme to check if the issues persists. * If it does not can you reactivate your themes/plugins one by one until you find the offending one? * [wpdario](https://wordpress.org/support/users/wpdario/) * (@wpdario) * [3 years, 4 months ago](https://wordpress.org/support/topic/call-to-undefined-function-_wp_get_current_user/#post-16416040) * Got following error on screen trying to wp-admin the site. I was able to admin the site some months ago without problems. Probable cause is some automatic wordpress update to 6.0.3. but I am not the site owner. * **Fatal error**: Uncaught Error: Call to undefined function wp_get_current_user() in /home/clients/bf6d4b9a256cfc32f6dd5832e4f280f3/dpge/wp-includes/capabilities. php:693 Stack trace: #0 /home/clients/bf6d4b9a256cfc32f6dd5832e4f280f3/dpge/wp- content/plugins/groups/lib/access/class-groups-post-access.php(232): current_user_can(‘ groups_admin_gr…’) #1 /home/clients/bf6d4b9a256cfc32f6dd5832e4f280f3/dpge/wp- includes/class-wp-hook.php(307): Groups_Post_Access::posts_where(‘ AND dpge_posts…’, Object(WP_Query)) #2 /home/clients/bf6d4b9a256cfc32f6dd5832e4f280f3/dpge/wp-includes/ plugin.php(235): WP_Hook->apply_filters(‘ AND dpge_posts…’, Array) #3 /home/clients/ bf6d4b9a256cfc32f6dd5832e4f280f3/dpge/wp-includes/class-wp-query.php(2653): apply_filters_ref_array(‘ posts_where’, Array) #4 /home/clients/bf6d4b9a256cfc32f6dd5832e4f280f3/dpge/wp- includes/class-wp-query.php(3613): WP_Query->get_posts() #5 /home/clients/bf6d4b9a256cfc32f6dd5832e4f280f3/ dpge/wp-includes/post.php(2410): WP_Query->query(Array) #6 /home/clients/bf6d4b9a256cfc32 in **/home/clients/bf6d4b9a256cfc32f6dd5832e4f280f3/dpge/wp-includes/capabilities. php** on line **693** * The error does prohibit to admin the site. Backend impossible. The function causing the error on line 393 is checking current user capability to admin the site using the **Groups plugin** function : current_user_can(‘groups_admin_gr…’) since renaming the plugin through ftp from outside enables to admin the site. Hereby the 2 source lines #692 and #693 involved from capabilites.php :function current_user_can( $capability, …$args ) {return user_can( wp_get_current_user(), $capability, … $args ); * I tried to update the plugin but it did not change, throwing same error. Please help. Why is the wp_get_current_user() undefined at the moment ? Viewing 2 replies - 1 through 2 (of 2 total) The topic ‘Call to undefined function _wp_get_current_user()’ is closed to new replies. * ![](https://ps.w.org/wp-optimize/assets/icon-256x256.png?rev=1552899) * [WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance](https://wordpress.org/plugins/wp-optimize/) * [Frequently Asked Questions](https://wordpress.org/plugins/wp-optimize/#faq) * [Support Threads](https://wordpress.org/support/plugin/wp-optimize/) * [Active Topics](https://wordpress.org/support/plugin/wp-optimize/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/wp-optimize/unresolved/) * [Reviews](https://wordpress.org/support/plugin/wp-optimize/reviews/) * 2 replies * 3 participants * Last reply from: [wpdario](https://wordpress.org/support/users/wpdario/) * Last activity: [3 years, 4 months ago](https://wordpress.org/support/topic/call-to-undefined-function-_wp_get_current_user/#post-16416040) * Status: resolved