//this can be used in wordpress plugin 
add_action('init','mystartsession',1);
add_action('wp_logout','myendsession');
add_action('wp_login','myendsession');
function mystartsession()
{
            if(!session_id())//session_id()used  to generate session for system session in c
            {
            session_start();
            }
}
function myendsession()
{
            session_destroy();
}
?>
//to use  create System or user session any where
  
<?php
            global
$wpdb;
            $sid=session_id();
?>
 
 

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