validate( $requirements ); } /** * Check addon requirements and activate addon or plugin. * * @since 1.8.4 * * @param string $plugin Path to the plugin file relative to the plugins' directory. * * @return null|WP_Error Null on success, WP_Error on invalid file. */ function wpforms_activate_plugin( string $plugin ) { $activate = activate_plugin( $plugin ); if ( is_wp_error( $activate ) ) { return $activate; } $requirements = Requirements::get_instance(); if ( ! $requirements->deactivate_not_valid_addon( $plugin ) ) { return null; } // Addon was deactivated due to requirements issues. return new WP_Error( 'wpforms_addon_incompatible', implode( "\n", $requirements->get_notices() ) ); }