title: Real time notification in PHP
body: <p>I am creating a PHP application, where I want one user make a database entry. It should be reflected to all the users whoever have this app open on their browser will get instant notification that some data has been updated on the database or with whatever data has been inserted. </p>
  
  <p>Is there any way I can get real time notification of data inserted or updated? On all the opened browser without any delay. </p>
  
  <p>We use AJAX for now. But it seems like our application is now working slow due to continues request. Any other way? Which is free.</p>
  
  <p>Thank you!</p>