title: allow HTTP AUTHENTICATION for PHP - bitnami lampstack
body: <p>I have an amazon aws server. I have installed bitnami lampstack to run site. My php version is 7.0.18.</p>
  
  <p>I want to allow the HTTP AUTHENTICATION for PHP for a payment notificaiton. My server api is apache 2.0 handler. I am not able to get an idea that how http authentication would work. </p>
  
  <p>Can any one please help me that what it is and how i can enable it. By the way my site is in magento 2. </p>