php session vars not showing up

Report · Oct 10, 2015

I have a slightly odd setup (let's pretend we don't want to change this right now)

I have a HTML page on site 1

- on page1.html I have an iframe that goes to site2 (php)

page2.php sets some session vars like

<?php

if(!session_id()) session_start();

$_SESSION["id"] = 123;

?>

- and then does a page jump to page3.php

echo '<meta http-equiv="refresh" content="2; url=ipage3.php">'

---- when I get to page3 the first time the session vars do not show up

like:

<?php

if(!session_id()) session_start();

echo $_SESSION["id"];

?>

---> but when I manually refresh the original site 1 page then it recycles everything and then successfully shows the session vars on page 3

Q: Curious why the session vars do not show up the 1st time around? Any idea how to fix this?

Report · Oct 10, 2015

This is wrong:

if(!session_id()) session_start();

$_SESSION["id"] = 123;

Right:

session_start();

if (is_numeric($_SESSION['id'])){

echo "The session id is ".$_SESSION['id'];

}

But I don't know if that's your only problem. The sessions will be on mysite2. The first site won't have access to them.