title: PHP : Gmail authentication in my application - will oAuth do this better?
body: <p>In my project all the Gmail users can access my application. So I referred Google API, The suggest me to use OpenID / OAuth. </p>
  
  <ol>
  <li>Could you say which one is better.</li>
  <li>I referred many no. of tutorials regarding oAuth, but none of them satisfied me.</li>
  <li>So Please advice, the simple method to achieve this.</li>
  </ol>