Authorize.Net <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML lang='en'> <HEAD> <TITLE> Sample SIM Implementation </TITLE> </HEAD> <BODY> <?PHP $loginID = "API_LOGIN_ID"; $transactionKey = "TRANSACTION_KEY"; $amount = "19.… Read More