I've just bought some new server space and am migrating a very simple PHP app to it that works fine on my other server. 

For some reason the session data is not being stored in the $\_SESSION variable between pages on the new server. I have looked at [this similar SO article](https://stackoverflow.com/questions/6200612/session-variables-are-not-persisting-between-page-loads) and many others to try and fix the issue.

I can confirm that:

1. The session stuff is working fine on my other site. I have looked into the directory defined by session.save\_path and there are loads of session files in there (on the OLD server).
2. I have echoed the contents of the $\_SESSION variable at the end of a page, and it is holding the correct data, it's just not being saved.
3. I have echo'd session\_id() for every page and get the same output.
4. I have had a look in the folder specified by the NEW server's session.save\_path folder (/usr/lib/php/session) and there aren't any files in there. I have checked the permissions and it's set at drwxrwx---, which should mean that the php program can write to it, right?
5. I have no .htaccess file.
6. I am running CentOS 5.5

This is from the relevant part of the phpinfo() output:

```
Session Support     enabled
Registered save handlers    files user
Registered serializer handlers  php php_binary wddx

Directive   Local Value Master Value
session.auto_start  Off Off
session.bug_compat_42   Off Off
session.bug_compat_warn On  On
session.cache_expire    180 180
session.cache_limiter   nocache nocache
session.cookie_domain   no value    no value
session.cookie_lifetime 0   0
session.cookie_path /   /
session.cookie_secure   Off Off
session.entropy_file    no value    no value
session.entropy_length  0   0
session.gc_divisor  1000    1000
session.gc_maxlifetime  1440    1440
session.gc_probability  1   1
session.hash_bits_per_character 5   5
session.hash_function   0   0
session.name    PHPSESSID   PHPSESSID
session.referer_check   no value    no value
session.save_handler    files   files
session.save_path   /var/lib/php/session    /var/lib/php/session
session.serialize_handler   php php
session.use_cookies On  On
session.use_only_cookies    Off Off
session.use_trans_sid   0   0

```

I've contacted the hosting company and they won't look into it because they say it's a software issue and it's not a managed account. Grrrrr...

Just so you can see some code that isn't working, I have stolen code from the article I have linked to:

```
// info.php
<?
session_start();

$_SESSION['ID'] = "112233";
$_SESSION['token'] = "mytoken";

print $_SESSION['ID'];
print $_SESSION['token'];
?>
<a href="info2.php">info 2</a>

```

and one called info2 with this code:

```
// info2.php
<?
session_start();

print $_SESSION['ID'];
print $_SESSION['token'];
?>
<a href="info.php">info</a>

```

result is printing the array data in info.php, but no output in info2.php (apart from the link of course).

Many thanks in advance for any help.