WooCommerce - Don't allow PO BOX within postcode, address 1 or address 2 fields.

gistfile1.txt

add_action('woocommerce_after_checkout_validation', 'deny_pobox_postcode');

function deny_pobox_postcode( $posted ) {
  global $woocommerce;
  
  // Put postcode, address 1 and address 2 into an array
  $check_address  = array();
  $check_address[] = isset( $posted['shipping_postcode'] ) ? $posted['shipping_postcode'] : $posted['billing_postcode'];
  $check_address[] = isset( $posted['shipping_address_1'] ) ? $posted['shipping_address_1'] : $posted['billing_address_1'];
  $check_address[] = isset( $posted['shipping_address_2'] ) ? $posted['shipping_address_2'] : $posted['billing_address_2'];

  // Implode address, make lowercase, and remove spaces and full stops
  $check_address = strtolower( str_replace( array( ' ', '.' ), '', implode( '-', $check_address ) ) );

  if ( strstr( $check_address, 'pobox' ) ) {
    $woocommerce->add_error( "Sorry, we don't ship to PO BOX addresses." );
  }
}

Updated to check address 1,2 and postcode and trim full stops.

So, does this not work with Free Shipping enabled?

Hi Mike,

The code outputs an incorrect error message 'Internal Server Error', apparently $woocommerce->add_error(); has been deprecated. Though it of course still functions correctly.

So replace:

$woocommerce->add_error( "Sorry, we cannot ship to PO BOX addresses." );

With:

wc_add_notice( sprintf( __( "Sorry, we cannot ship to PO BOX addresses.") ) ,'error' );

Also if you know how I could implement strstr to check an array instead of a string as I'm having a bit of trouble getting it to work, trying to exclude multiple postcodes.

strstr( $check_address, $example_array )

Thanks!

Mike,

Is there a way to use this code to where the message pops up only when they try to use a certain shipping method? For example the UPS method. I want to deny shipping to PO Box Addresses based on the shipping method UPS.