<?php defined( 'ABSPATH' ) || exit; add_action( 'admin_notices', function() { if ( current_user_can( 'activate_plugins' ) ) { ?> <div class="notice notice-error is-dismissible filebird-notice"> <p> <strong><?php esc_html_e( 'It looks like you have another FileBird version installed, please delete it before activating this new version. All of the settings and data are still preserved.', 'filebird' ); ?> <a href="https://ninjateam.gitbook.io/filebird/how-to-update-filebird"><?php esc_html_e( 'Read more details.', 'filebird' ); ?></a> </strong> </p> </div> <?php //phpcs:ignore WordPress.Security.NonceVerification.Recommended if ( isset( $_GET['activate'] ) ) { //phpcs:ignore WordPress.Security.NonceVerification.Recommended unset( $_GET['activate'] ); } } } );