"create_forex_trade", //this is the service name "partner" =>$partner, "return_url" =>$return_url, "notify_url" =>$notify_url, "_input_charset" => $_input_charset, "subject" => "test", //subject is the name of the product, you'd better change it "body" => "test only", //body is the description of the product , you'd beeter change it "out_trade_no" => time() , "total_fee" => "10", //the price of products "currency"=>"HKD", // change it as the currency which you used on your website ); $alipay = new alipay_service($parameter,$security_code,$sign_type); print_r($parameter ); $link=$alipay->create_url(); print << submit EOT; ?>