How to print all session variables currently set?

Question

Without having to call each session variable by name, is there a way to display the content of all the session variables currently set?

Answer 1

echo '<pre>';
var_dump($_SESSION);
echo '</pre>';

Or you can use print_r if you don't care about types. If you use print_r, you can make the second argument TRUE so it will return instead of echo, useful for...

echo '<pre>' . print_r($_SESSION, TRUE) . '</pre>';