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Session_start() PHP Function

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