how to share a session with other websites(subdomains) ?

[coolatt]

hi all,

I want to use session for storing username & password.
I will have a main page mainpage.mydomain.com which will save username+password in a session on the server.

Now when i access email.mydomain.com i want it to retrieve the username+password from the session previously created by mainpage.mydomain.com.

The web applications are hosted on the same machine using apache virtual hosts.
Someone plz advise...

thanks

[chathura86]

If you want to be able to pass session data between subdomains you need to add/modify the following to the php.ini file.

session.cookie_domain = .mydomain.com

If you are unable to modify the the php.ini file you can add the following before the session.start() function on any page which creates the session cookie.

ini_set("session.cookie_domain", ".mydomain.com");

[coolatt]

thanks for replying.

but how do i make email.mydomain.com access the data stored in the session created by mainpage.mydomain.com ?

I want the mainpage domain to store username+password.
in session_test.php i put:

<?php
session_start();
$_SESSION['userName'] ="MyUserName";
$_SESSION['password'] ="MyPassword";
 
print "Session Test";
 
?>
 
 

then in session_show.php i put :

<?php
session_start();
if(isset($_SESSION['userName']))
{
  print "Session id: ".session_id()."<br>";
  print "Your session username: ".$_SESSION['userName']. "<br>";
  print "Your session password: ".$_SESSION['password']."<br>";
}
else
{
  print "Session does not exist";
}
?>
 
 

when i run the above test i get the session id.

[chathura86]

just do one of the step which i have mentioned above

after that you can use it as it is,
i mean set $_SESSION['foo'] = "bar"; in one domain
and you can get it from the other domain
by $_SESSION['foo']

no other modifications are required

Regards

[coolatt]

both email.mydomain.com & mainpage.mydomain.com are already using sessions.

I tried to put the following code in email.mydomain.com but it didnt print theh username & password:

if(isset($_SESSION['userName']))
{
  print "Session id: ".session_id()."<br>";
  print "Your session username: ".$_SESSION['userName']. "<br>";
  print "Your session password: ".$_SESSION['password']."<br>";
}
 
else
{
  print "I cannot retrive data from another domain's session";
}
 

Is it because email.mydomain.com is already using session ??

[chathura86]

which method you used ?

editing the php.ini or setting it on the php code?

Regards

[coolatt]

editing the php.ini
/////////////////////////

[chathura86]

then the session should be shared on the sub domains also. but remember to restart apache after changing the php.ini

Regards

[coolatt]

yes i had restarted apache. any other steps i have to follow to make it work ?
plz advise on this.

[coolatt]

it does not work when both domains implement their own session management :-(