Code-Snippets-Functions/Execute a function on a child site/WooCommerce/remove-specific-states-shipping-form-checkout.txt

function filter_woocommerce_form_field_state( $field, $key, $args, $value ) {
    // Checkout page only
    if ( ! is_checkout() ) return $field;
    
    // Only for shipping
    if ( $key == 'shipping_state' ) {
        // Replace all occurrences of the search string with the replacement string
        $field = str_replace( '<option value="CE" >Ceuta</option>', '', $field );
        $field = str_replace( '<option value="ML" >Melilla</option>', '', $field );
        $field = str_replace( '<option value="PM" >Baleares</option>', '', $field );
        // Etc..
    }
    
    // Do something
    return $field;
}
add_filter( 'woocommerce_form_field_state', 'filter_woocommerce_form_field_state', 10, 4 );