I have converted the postcode field in checkout to a dropdown field. Its working fine.

$fields['billing']['billing_postcode'] = array(
    'type' => 'select',
    'label'     => __('Locality - Postcode', 'woocommerce'),
    'placeholder'   => _x('Select a locality', 'placeholder', 'woocommerce'),
    'required'  => true,
    'class'     => array('form-row-first'),
    'clear'     => false

This is getting updated in the db and values show on order invoice. Now how would I show the already stored value of postcode field as selected option in the checkout fields. For ex: How the name is auto populated for a registered customer based on his earlier order. I have tried a few functions, but no relief. Kindly advice somebody!

1 Answer 1


I just had a similar problem and solved it with a combination of PHP and jQuery.

If $stored_value is what you have pulled from the DB and #billing_postcode is the id of the select-tag:

<?php if ( !empty( $stored_value ) ) { ?>
<script type="text/javascript">
    jQuery(document).ready(function($) {
        $("select#billing_postcode").val( "<?php echo $stored_value; ?>" );
<?php } ?>

I use this inside a function that I apply to the "woocommerce_checkout_fields" filter.

Update 1: After a little bit more research I found out that I can also just do this:

<?php if ( !empty( $stored_value ) ) {
$fields['billing']['billing_postcode']['default'] = $stored_value;
} ?>

Update 2:

In functions.php of my theme, I put it in like this:

// Hook in
add_filter( 'woocommerce_checkout_fields' , 'jsm_override_checkout_fields' );

function jsm_override_checkout_fields( $fields ) {

    $stored_value = "something pulled from the DB";

    if ( !empty( $stored_value ) ) {
    $fields['billing']['billing_postcode']['default'] = $stored_value;

    return $fields;
} ?>
  • Thanks Jakob for helping, but where would this piece of code go into? I have already tried this on similar lines which does not work in functions.php $current_user = wp_get_current_user(); $fields['billing']['billing_postcode']['default'] = $current_user->billing_postcode; return $fields;
    – Anith
    Commented Mar 4, 2016 at 6:11
  • @Anith See Update 2 in my original answer. Commented Mar 7, 2016 at 21:52

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