How to make all user fields translatable

When translating with WPML custom fields created by the ACF plugin, the question arises – how to make all fields translatable? Usually on the site there are quite a lot of such fields (hundreds – a typical example) and to click in the WPML settings hundreds of times – quite tedious work.

Below is an example of how to do this with the code.

Create an acf-helper folder at the root of the site. Put two files into it: acf-helper.php and class-acf-helper.php.

Code in acf-helper.php:

<?php
 
require_once '../wp-load.php';
 
require_once 'class-acf-helper.php';
 
$acf_helper = new ACF_Helper();
$acf_helper->make_all_cf_translatable();

Code in class-acf-helper.php:

<?php
/**
 * ACF_Helper class file
 */
 
/**
 * Class ACF_Helper
 */
class ACF_Helper {
    private $tm = null;
 
    public function __construct() {
        if ( class_exists( 'SitePress' ) ) {
            $this->tm = wpml_load_core_tm();
        }
    }
 
    public function make_all_cf_translatable() {
        if ( null === $this->tm ) {
            echo 'Error: WPML Multilingual CMS plugin must be activated.';
 
            return;
        }
 
        $settings = $this->tm->get_settings();
 
        $factory = new WPML_Custom_Field_Setting_Query_Factory();
        $query   = $factory->create( WPML_Custom_Field_Setting_Query_Factory::TYPE_POSTMETA );
        $cft     = $query->get( [ 'hide_system_fields' => true ] );
        $cft     = array_fill_keys( $cft, WPML_TRANSLATE_CUSTOM_FIELD );
 
        $settings[ WPML_POST_META_SETTING_INDEX_PLURAL ] = array_merge(
            $settings[ WPML_POST_META_SETTING_INDEX_PLURAL ],
            $cft
        );
        $this->tm->settings                              = $settings;
        $this->tm->save_settings();
    }
}

Start acf-helper.php and all user field will become translatable.

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