title: Login with Google account in CodeIgniter with OpenID
body: <p>I want to implement a login with a Google account using OpenID, but I have no idea how to start this procedure because I have no idea about how to do it. So is there any step by step guides for this so that I can easily implement a Google account login with CodeIgniter in PHP.</p>
  
  <p>I've found only <a href="http://openid.net/get-an-openid/" rel="nofollow">this</a> but I cant understand it properly so is there any guides or any libraries to login with a Google account? </p>