[ "aid" => '43065',//"your_account_id", "mid" => '42504',//"your_merchant_id", "portalid" => '2030693', "key" => hash("md5", "Zjop5cvP2UeB7Qhy"), // the key has to be hashed as md5 "mode" => "test", // can be "live" for actual transactions "api_version" => "3.11", "encoding" => "UTF-8" ] ];