[Forminator] - Submission id in response messag. This snippet allows to use the submission id in response messages. The following macro can be used in the content `{submission_id}`

forminator-entry-id-in-response.php

<?php
/**
 * Plugin Name: [Forminator] - Submission id in response message
 * Plugin URI: https://premium.wpmudev.org/
 * Description: This snippet allows to use the submission id in response messages. The following macro can be used in the content `{submission_id}`
 * Author: Panos Lyrakis @ WPMUDEV
 * Author URI: https://premium.wpmudev.org/
 * License: GPLv2 or later
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

if ( defined( 'WP_CLI' ) && WP_CLI ) {
	return;
}

if ( ! class_exists( 'WPMUDEV_Forminator_Submission_ID_In_Response' ) ) {

	class WPMUDEV_Forminator_Submission_ID_In_Response {

		private static $_instance = null;
		private $macro            = '{submission_id}';

		public static function get_instance() {

			if ( is_null( self::$_instance ) ) {
				self::$_instance = new WPMUDEV_Forminator_Submission_ID_In_Response();
			}
			return self::$_instance;

		}

		private function __construct() {

			global $wpdb;
			$this->forminator_entry_meta_tbl = "{$wpdb->prefix}frmt_form_entry_meta";

			add_action( 'forminator_custom_form_submit_before_set_fields', array( $this, 'temporize_entry_id' ), 20, 3 );
			add_filter( 'forminator_custom_form_ajax_submit_response', array( $this, 'inject_entry_to_response' ), 20 );
			add_filter( 'forminator_custom_form_submit_response', array( $this, 'inject_entry_to_response' ), 20 );

		}

		/*
		** Sets the entry id in a temporary $_POST key, _forminator_temp_entry_id
		** By default it is not available. Setting it to the $_POST Global Var we can add it to ajax
		** response on forminator_custom_form_ajax_submit_response filter
		*/
		public function temporize_entry_id( $entry, $form_id, $field_data_array ) {

			$form = Forminator_Custom_Form_Model::model()->load( $form_id );

			$_POST['_forminator_temp_entry_id'] = $entry->entry_id;
			$_POST['_forminator_temp_form_id']  = $form_id;

		}

		/*
		** Inject the form id and entry id in ajax response
		*/
		public function inject_entry_to_response( $response ) {

			if ( isset( $_POST['_forminator_temp_entry_id'] ) && is_numeric( $_POST['_forminator_temp_entry_id'] ) &&
				isset( $_POST['_forminator_temp_form_id'] ) && is_numeric( $_POST['_forminator_temp_form_id'] )
			) {
				$entry_id             = (int) $_POST['_forminator_temp_entry_id'];
				$response['entry_id'] = $entry_id;
				$response['form_id']  = (int) $_POST['_forminator_temp_form_id'];
				$response['message']  = str_replace( $this->macro, $entry_id, $response['message'] );
			}

			return $response;

		}

	}

	if ( ! function_exists( 'wpmudev_forminator_submission_id_in_response' ) ) {

		function wpmudev_forminator_submission_id_in_response() {
			return WPMUDEV_Forminator_Submission_ID_In_Response::get_instance();
		};

		add_action( 'plugins_loaded', 'wpmudev_forminator_submission_id_in_response', 10 );
	}
}