Dynamic vars inside a loop

Var	Data type	Description
$_item	mixed	Current item
$_previous	mixed	The previous item
$_next	mixed	The next item
$_key	mixed	The key of the item in the PHP array
$_index	integer	The index of the item (0..n-1)
$_index_random	integer	Random index of the list (0..n-1)
$_order	integer	The order of the item (1..n)
$_list	string	The name of the list
$_is_last	boolean	True if the current item is the last
$_is_first	boolean	True if the current item is the first
$_is_odd	boolean	True if the current index is odd
$_is_even	boolean	True if the current index is even