Interview Questions & Answers

Via define() directive, like define ("MYCONSTANT", 100);

In SIM (Simple integration Method) customer credit card details are taken on the authorize.net site - no SSL required
AIM (Advanced integration Method) Credit card details are taken over your site SSL require.

please check setup instructions for more details http://www.ecommercetemplates.com/phphelp/ecommplus/authorizenet.asp