/** * Adds "ID" column to the "Users" page. * * @see https://wpcodebook.com/snippets/add-user-id-column-to-users-list-in-wordpress/ */ add_filter( 'manage_users_columns', function ( $columns ) { $columns['user_id'] = esc_html__( 'ID' ); return $columns; } ); /** * Renders "ID" column. * * @see https://wpcodebook.com/snippets/add-user-id-column-to-users-list-in-wordpress/ */ add_filter( 'manage_users_custom_column', function ( $output, $column_name, $user_id ) { return ( 'user_id' === $column_name ? $user_id : $output ); }, 10, 3 );