echo a session

[leonespatodos]

Hi,

I'm a ColdFusion developer and I'm starting to learn PHP.

I'm trying to use a session variable to query a table and the query is returning 0 rows. I'm trying to check what the value is in the SESSION but when I echo the session it comes up blank.

echo $_SESSION['userid'];

How do you check if the session exists or if it's empty?

I'd appreciate any input. Thanks.

[Kudose]

If you don't get anything with that code, then it is empty.

You can use [man]print_r[/man] to print out the contents of an array ($_SESSION) and you can use [man]empty[/man] to see if an element is empty.

You can also use if(!$SESSION['item']) to do something if $SESSION['item'] does not exist or is empty/0