programming assistance in PHP Thanks Corey Bryant I need exactly to: Make the IPN script, then When the payment succeeds, I have to call clicksor payment API to fund the advertiser account. Format of calling API: https://admin.clicksor.com/admin/api_network_pay.php?txn_id=[invoice No.]&fund=[amount of payment]&security=[security string passed by System ]. I have some sort of idea, but anyone give me a price quote?