Session_start() PHP Function

Definition: Session_start() is used in PHP to initiate a session on each PHP page. It must be the first thing sent to the browser, or it won't work properly, so it's usually best to place it right after the <?php tags. This must be on every page you intend to use sessions on. For more information read our sessions tutorial.

Also Known As: Start Session PHP

 <?php 
 // this starts the session 
 session_start(); 
 
 // this sets variables in the session 
 $_SESSION['test']='testing'; 
 
 print "Done"; 
 ?>