Hi guys,
Here in my application generated one registration form. after successful registration need to generate one security pin and sent to user vai email or mobile.
when user login in the application for first time in the browser, user needs to enter the security pin.
and my question is how to save the security pin and how to check when user login first time.
I am very confusing and struck with that work, if anyone knows about that please help me guys. otherwise please tell your views how to continue with application.