if(isset($_POST['submit'])) {
insertInvoiceItem($_POST['invoice_id'],$_POST['quantity'],$_POST['product'],$_POST['tax_id'],$_POST['description']);
}if(isset($_POST['submit'])) {
invoice::insertInvoiceItem($_POST['invoice_id'],$_POST['quantity'],$_POST['product'],$_POST['tax_id'],$_POST['description']);
}1 to 7 of 7