title: Single Sign On - Office 365 Using PHP/MySQL
body: <p>We have a web application in which login/signup is already there. Now we want to allow Office 365 users to login into our application even if they dont have account in our application. I have google it more to find it. But i want PHP Api to integrate it. </p>
  
  <p><strong>Is there any PHP api for this?</strong> </p>
  
  <p>Please suggest me on this.</p>