[Forminator] - Add entry id to redirect url

forminator-add-entry-id-to-redirect-url.php

<?php
/**
 * Plugin Name: [Forminator] - Add entry id to redirect url
 * Description: [Forminator] - Add entry id to redirect url
 * Author: Thobk @ WPMUDEV
 * Author URI: https://premium.wpmudev.org
 * License: GPLv2 or later
 */
if ( ! defined( 'ABSPATH' ) ) { exit; } elseif ( defined( 'WP_CLI' ) && WP_CLI ) { return; }

add_action( 'plugins_loaded', 'wpmudev_forminator_add_entry_id_to_redirect_url_func', 100 );

function wpmudev_forminator_add_entry_id_to_redirect_url_func() {
	if ( defined('FORMINATOR_PRO') && class_exists( 'Forminator' ) ) {
		class WPMUDEV_Forminator_Add_Entry_ID_To_Redirect_URL{
			private $form_id = 2812;//enter form_id here
			private $redirect_url = 'http://wp.local/inc/account/';//enter your redirect url here, it must be matches with the link you added on the form
			private $entry_id;

			public function __construct(){
				add_action( 'forminator_custom_form_submit_before_set_fields', array( $this, 'retrive_entry_id' ), 10, 2 );
				add_filter( 'forminator_replace_form_data', array( $this, 'add_entry_id_to_redirect_url') );
			}


			public function retrive_entry_id( $entry, $form_id ){
				if( $this->form_id == $form_id ){
					$this->entry_id = $entry->entry_id;
				}
			}

			public function add_entry_id_to_redirect_url( $content ){
				if( $this->entry_id && $this->redirect_url === $content ){
					$content = add_query_arg('entry_id', $this->entry_id, $content);
				}
				return $content;
			}

		}

		$run = new WPMUDEV_Forminator_Add_Entry_ID_To_Redirect_URL;
	}
}