Forminator - duplicate checks with skip option

<?php

/**
* Plugin Name: [Forminator] Check submission duplicated data
* Plugin URI: https://premium.wpmudev.org/
* Description: check if entry with same data (per defined field) already exists and prevent such duplicated data submission
* Author: adczk
* Author URI: https://premium.wpmudev.org/
* License: GPLv2 or later
*
* Tested with Forminator 1.22.1
*
*
* USE AS MU PLUGIN
*
* config explained in code comment
*
*/

add_filter( 'forminator_custom_form_submit_errors', 'check_form_duplicate_submission_data', 99, 3 );
function check_form_duplicate_submission_data( $submit_errors, $form_id, $field_data_array ) {

    $form_ids = array( 2245, 123 ); // form IDs - one or more; if more - separate numbers with commas
    $check_field_id = 'checkbox-1'; // ID of the field to determine if to do the data check or skip it; must be SINGLE checkbox
    $fields_ids = array( 'phone-1', 'email-1' ); // IDs of fields to check, one or more, if more - separate with commas
    $err_msg = 'Duplicated entry!'; // custom error message



    // do not edit below

    $check = false;

    if ( !in_array( $form_id, $form_ids ) ) {
        return $submit_errors; // just bail out and skip checks
    }


    foreach( $field_data_array as $key => $value ) {
        $field_name = $value['name'];

        if ( $field_name == $check_field_id )  {
            $check = true;
        }

            if ( in_array( $field_name, $fields_ids ) && $check ) {

                $entries = Forminator_Form_Entry_Model::select_count_entries_by_meta_field( $form_id, $field_name, $value['value'], '*' );


                if ( $entries ) {
                    $submit_errors[][$field_name] = $err_msg;
                }
            }

    }

    return $submit_errors;
}