PHP/Cookie Session/session id

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function session_id() returns the user"s SID originally created by session_start().

   <source lang="html4strict">

This is its syntax: string session_id([string sid]) <? session_start (); print "Your session identification number is ".session_id(); session_destroy(); ?> 

 </source>


session_id() function

   <source lang="html4strict">

<?php 

  session_start ();
  echo "Your session identification number is ".session_id();

?> 

 </source>


Starting or Resuming a Session

   <source lang="html4strict">

<?php session_start(); ?> <html> <head> <title>Starting or Resuming a Session</title> </head> <body> <?php

print "

Welcome, your session ID is ".session_id()."

\n\n";

?> </body> </html> 

 </source>
Источник — «http://wbex.ru/index.php?title=PHP/Cookie_Session/session_id&oldid=151»