session_id(): 823eac1dd1e663d2caff0f266ce17d4e<br>Cookie (from $_COOKIE): <pre>Array
(
    [PHPSESSID] =&gt; 823eac1dd1e663d2caff0f266ce17d4e
)
</pre>Session content: <pre>Array
(
)
</pre><p><a href="session_test.php?set=hello">Set session to "hello"</a></p>