Greg808

<?php
// Frontend: Display the custom billing fields (in checkout and my account)
add_filter( 'woocommerce_billing_fields' ,'add_custom_billing_fields', 20, 1 );
function add_custom_billing_fields( $fields ) {
    $fields['billing_address_3'] = array(
        'label' => __( 'Stiege', 'woocommerce' ),
        'placeholder'   => _x('Stiege', 'placeholder', 'woocommerce'),
        'required'  => true,
        'class'     => array('form-row-wide'),
        'clear'     => true