Add custom field in woocommerce registration form

Add custom field in woocommerce registration form

add_action( 'register_form', 'adding_custom_registration_fields' );
function adding_custom_registration_fields( ) {

    //lets make the field required so that i can show you how to validate it later;
    $city = empty( $_POST['city'] ) ? '' : $_POST['city'];
   
    ?>
    <div class="form-row form-row-wide">
        <label for="reg_city"><?php _e( 'city', 'woocommerce' ) ?><span class="required">*</span></label>
        <input type="text" class="input-text" name="city" id="reg_city" size="30" value="<?php echo esc_attr( $city ) ?>" />
    </div>
    <?php
}


Updating use meta after registration successful registration

add_action('woocommerce_created_customer','adding_extra_reg_fields');

function adding_extra_reg_fields($user_id) {
    extract($_POST);
    update_user_meta($user_id, 'city', $city);
   
    update_user_meta($user_id, 'billing_city', $city);
    update_user_meta($user_id, 'shipping_city', $city);
   
}