SplDoublyLinkedList::current

<?php
/*
 * Examples of DoublyLinkedList
 */
$obj = new SplDoublyLinkedList();
// Check wither linked list is empty
if ($obj->isEmpty())
{
 echo "Adding nodes to Linked List<br>";
 $obj->push(2);
 $obj->push(3);
 echo "Adding the node at beginning of doubly linked list <br>";
 $obj->unshift(10);
}
echo "<br>Our Linked List:";
print_r($obj);
$curr = $obj->current(); // this will return NULL as we have not set initial node.
echo "<br> Rewinding the position so that current node points to first node ";
$obj->rewind(); 
echo "<br>Current node of the linked list:";
echo $obj->current(); // this will print first node of the linked list.
echo "<br>Moving to Next node:";
$obj->next();
echo "<br>Printing the next node:";
echo $obj->current();
?>