I'm posting that as example if you want to integrate RedBack business object into PHP page. Here is the code:
$conn = new COM('ADODB.Connection');
$conn->Provider = "Redback.RedPages.1";
$conn->Open($cAccount,$cUser,$cPassword);
$rboOrder = new COM("RedBack.RedObject");
$rboOrder->Open($conn,"SHOPš®rder");
$rboOrder->CallMethod("ReadInvoice");
$objprop = $rboOrder->Property("InvoiceNo");
echo $objprop->value;
I guess that will helps you to start working with that.
If you need more detailed help email me