I have magento installed in a subdirectory /store
/ Main website /store Shop website
If I set a $_SESSION item in /, I can't access it within /store. I've print_r'd $_SESSION in /store and it has all the magento session keys there but not the key I've set in /
How can I access the $_SESSION item set in / ? I thought it would work because it's the same domain/server just a different folder.
Fist of all don't edit the index file. Use an event for adding something to the session.
controller_action_predispatch is dispatched before every Magento action for example. But you can use others also.
Second.
Don't use $_SESSSiON var.
Add something to the session like this:
Mage::getSingleton('core/session')->setData('key_here', 'value_here');
To read it from the session do this:
Mage::getSingleton('core/session')->getData('key_here');
or if you want to retrieve the value and remove it from the session do this:
Mage::getSingleton('core/session')->getData('key_here', true);