get_invoice_info() as $info_id => $info ) { $invoice_data = $invoice->get_invoice_info(); } //$order_data = $invoice_data['order_number']; $order_id = $order_data['value']; if(!empty($order_id)){ // Custom fields and its label. $fields = array( 'billing_company_name' => 'Company Name', 'billing_company_code' => 'Company Code', 'billing_company_vat' => 'Company VAT', 'billing_company_adress' => 'Company Address' ); foreach ($fields as $key => $label) { $value = get_post_meta( $order_id, $key, true ); if(!empty($value)){ $html .= '

'. $label .':
'. $value .'