ashfedor

Напишу на всякий случай может кому-то пригодится.
Все оказалось проще чем обычно!)
На этом сервере в 8 версии не поддерживается краткое <?
нужно писать полностью <?php

Все намного проще чем казалось! может кому то понадобится
вот хук

function wpcf7_modal_mailsent_js() {
  wp_enqueue_script( 'sweetalert', 'https://unpkg.com/sweetalert/dist/sweetalert.min.js' );
}

/**
 * Выводит на экран модальное окно при успешной отправки формы.
 *
 * @return void
 */
function wpcf7_modal_mailsent_js_inline() {
  ?>
  <script>
    // Срабатывает при успешной отправке формы.
    document.addEventListener('wpcf7mailsent', function (response) {
      MicroModal.close('modal-1')
      // Запускает модальное окно.
      MicroModal.show('modal-2');
    }, false);
  </script>

  <style>
      .wpcf7-mail-sent-ok {
          display: none !important;
      }
  </style>
  <?php
}

Нашел на просторах решение. Внедрил вроде хорошо работает!
## --- FOR CHECKOUT --- ##

// Checkout billing phone validation (Checking length)
add_action('woocommerce_checkout_process', 'my_custom_checkout_field_process');
function my_custom_checkout_field_process() {
if ( $_POST['billing_phone'] && strlen($_POST['billing_phone']) < 10 )
wc_add_notice( __('Please type a correct phone number…', 'woocommerce'), 'error' );
}

## --- FOR CUSTOM REGISTRATION FORM --- ##

// Add custom fields to registration form.
add_action('woocommerce_register_form_start', 'text_domain_woo_reg_form_fields');
function text_domain_woo_reg_form_fields() {
?>


<?php _e('First name', 'woocommerce'); ?>*



<?php _e('Last name', 'woocommerce'); ?>*




<?php _e( 'Phone', 'woocommerce' ); ?>


*



<?php
}

// Checking & validation of custom fields in registration form.
add_action('woocommerce_register_post', 'text_domain_woo_validate_reg_form_fields', 10, 3);
function text_domain_woo_validate_reg_form_fields( $username, $email, $validation_errors ) {
if (isset($_POST['billing_first_name']) && empty($_POST['billing_first_name'])) {
$validation_errors->add('billing_first_name_error', __('İsim alanı zorunludur! / Name field is required!', 'woocommerce'));
}
if (isset($_POST['billing_last_name']) && empty($_POST['billing_last_name'])) {
$validation_errors->add('billing_last_name_error', __('Soyisim alanı zorunludur! / Surname field is required!', 'woocommerce'));
}
if (isset($_POST['billing_phone']) && empty($_POST['billing_phone'])) {
$validation_errors->add('billing_phone_error', __('Telefon alanı zorunludur! / Phone field is required!', 'woocommerce'));
}

// ==> CHECKING PHONE LENGTH (10 character minimal) <==
if (isset($_POST['billing_phone']) && strlen($_POST['billing_phone']) < 10 ) {
$validation_errors->add('billing_phone_error', __('Please type a correct phone number…', 'woocommerce'));
}
return $validation_errors;
}

// Add custom fields to registration form.
add_action( 'woocommerce_created_customer', 'custom_save_extra_register_fields' ); // <==== Missing
function custom_save_extra_register_fields($customer_id) {
//First name field
if (isset($_POST['billing_first_name'])) {
update_user_meta($customer_id, 'first_name', sanitize_text_field($_POST['billing_first_name']));
update_user_meta($customer_id, 'billing_first_name', sanitize_text_field($_POST['billing_first_name']));
}
//Last name field
if (isset($_POST['billing_last_name'])) {
update_user_meta($customer_id, 'last_name', sanitize_text_field($_POST['billing_last_name']));
update_user_meta($customer_id, 'billing_last_name', sanitize_text_field($_POST['billing_last_name']));
}
//Phone field
if (isset($_POST['billing_phone'])) {
update_user_meta($customer_id, 'phone', sanitize_text_field($_POST['billing_phone']));
update_user_meta($customer_id, 'billing_phone', sanitize_text_field($_POST['billing_phone']));
}
}