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WooCommerce Registration Form Postcode Field Validator

About

If you mange a store which does not allow for local pickup and you only deliver to specific postcodes, you may wish to save customers the hassle and aggravation of going through the entire checkout process necessarily, simply by asking the user for their postcode when they register. This quick guide adds a custom postcode field to the register form, then compares it against a list of postcodes which you define. If the first two characters of the postcode entered match the list, the user is able to register. If the first two characters of the entered postcode do not match any from the list, an error message will appear and the user is prevented from being able to register.

Language

PHP

Rating

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How to Setup Snippet

Simply copy the pre-coded solution to your active child theme’s functions.php or preferably the Code Snippets Plugin.

Link for further information:

The author has provided the following URL that may be helpful to setting up or using this snippet:

https://www.ecommercehints.com/woocommerce-registration-form-postcode-field-validator

Codevault

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Wordpress Compatability

The author has indicated that this snippet is compatable up to wordpress version: 6.1

Our AI bot has checked this snippet is compatable up to wordpress version: 6.1

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Website/ Profile URL:

https://www.ecommercehints.com/

History

Last modified:

14/11/2022

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WooCommerce Registration Form Postcode Field Validator

 
                    
 1/**
 2* Snippet Name:        WooCommerce registration form postcode field validator
 3* Snippet Author:    ecommercehints.com
 4*/
 5 
 6// Create the field and display it on the registation form
 7add_action('woocommerce_register_form', 'ecommercehints_registraion_form_postcode_field');
 8function ecommercehints_registraion_form_postcode_field() {
 9   woocommerce_form_field(
10      'billing_postcode',
11      array(
12         'type'        => 'text',
13         'required'    => true,
14         'label'       => 'Your Postcode',
15         'placeholder' => 'Postcode',
16         'description' => 'To check if we deliver to you'
17     ),
18      (isset($_POST['billing_postcode']) ? $_POST['billing_postcode'] : '')
19  );
20}
21 
22// Show an error message if the postcode is empty or not accepted
23add_action('woocommerce_register_post', 'ecommercehints_postcode_field_validation', 10, 3);
24function ecommercehints_postcode_field_validation($username, $email, $errors) {
25   if (empty($_POST['billing_postcode'])) {
26      $errors->add('billing_postcode_error', 'Your postcode is a required field');
27   }
28   $postcode = substr($_POST['billing_postcode'],0,2);
29   $postcodes = array(
30      'DD', 'DA', 'CW', '', ' ', // The list of postcodes accepted
31  );
32   if (!in_array(strtoupper($postcode), $postcodes)) {
33   $errors->add('billing_postcode_error', 'Sorry, you cannot register as we don\'t deliver to you');
34}
35}
36 
37// Save the postcode as user meta
38add_action('woocommerce_created_customer', 'ecommercehints_save_postcode_field');
39function ecommercehints_save_postcode_field($customer_id) {
40   if (isset($_POST['billing_postcode'])) {
41      update_user_meta($customer_id, 'billing_postcode', wc_clean($_POST['billing_postcode']));
42   }
43}

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