Block PO Box Shipping Addresses
Rejects checkout when the shipping address is a PO Box or post office locker, for couriers that cannot deliver there.
Opens WPIDE on
Code
$wpide_po_patterns = '/\b(p\.?\s*o\.?\s*box|post\s*office\s*box|pobox|packstation|postfach)\b/i'; // Patterns to block.
add_action( 'woocommerce_after_checkout_validation', function ( $data, $errors ) use ( $wpide_po_patterns ) {
if ( empty( WC()->cart ) || ! WC()->cart->needs_shipping() ) {
return;
}
$prefix = ! empty( $data['ship_to_different_address'] ) ? 'shipping_' : 'billing_';
$lines = ( $data[ $prefix . 'address_1' ] ?? '' ) . ' ' . ( $data[ $prefix . 'address_2' ] ?? '' );
if ( preg_match( $wpide_po_patterns, $lines ) ) {
$errors->add( 'shipping', 'Sorry, we cannot deliver to PO Boxes or parcel lockers. Please enter a street address.' );
}
}, 10, 2 );Notes
Checks both address lines of the address the order ships to; extend $wpide_po_patterns for other languages.
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