[Forminator] - Send File Uploaded As An Attached In Email

forminator-send-file-as-an-attachment-in-email.php

<?php
/**
 * Plugin Name: [Forminator] - Send File Uploaded As An Attached In Email
 * Description: [Forminator] - Send File Uploaded As An Attached In Email
 * Author: Thobk @ WPMUDEV
 * Author URI: https://premium.wpmudev.org
 * License: GPLv2 or later
 */
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

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

function wpmudev_forminator_send_file_uploaded_as_an_attached_in_email_func() {
	if ( defined('FORMINATOR_PRO') && class_exists( 'Forminator' ) ) {
		class WPMUDEV_Forminator_Send_Uploaded_As_Attachment{
			private $delete_file_after_sent = true;
			private $files = [];

			public function __construct(){
				add_action( 'forminator_custom_form_mail_before_send_mail', array( $this, 'retrive_uploaded_file_from_data' ), 10, 4 );
			}


			public function retrive_uploaded_file_from_data( $front_mail, $custom_form, $data, $entry ){
				$form_ids = array( 2910, 2911 ); //Add your comma-separated form IDs here
				if ( ! in_array( $custom_form->id, $form_ids ) ) {
					return;
				}

				$upload_fields = $custom_form->get_fields_by_type('upload');
				if( $upload_fields ){
					foreach( $upload_fields as $field ){
						$file = $entry->get_meta($field->slug);
						if( ! empty( $file['file'] ) ){
							$this->files[] = $file['file']['file_path'];
						}
					}


					add_filter( 'wp_mail', array( $this, 'add_attachment_custom_form' ) );
					add_filter( 'forminator_entry_ignored_fields', array( $this, 'ignore_upload_fields' ) );
					add_action( 'forminator_custom_form_mail_admin_sent', array( $this, 'after_sent_email') );
					// for user use hook forminator_custom_form_mail_user_sent see front-mail.php
				}
			}


			public function add_attachment_custom_form( $atts ){
				if( $this->files ){
					$atts['attachments'] = $this->files;
				}

				return $atts;
			}


			public function after_sent_email(){
				if( $this->files ){
					if( $this->delete_file_after_sent ){
						foreach( $this->files as $path ){
							// remove file from the upload directory
							@unlink( $path );
						}
					}
					$this->files = [];
				}
			}


			public function ignore_upload_fields( $ignore_field_types ){
				$ignore_field_types[] = 'upload';
				return $ignore_field_types;
			}

		}

		$run = new WPMUDEV_Forminator_Send_Uploaded_As_Attachment;
	}
}