1: <?php
 2: namespace Pharborist\Variables;
 3: 
 4: use Pharborist\ParentNode;
 5: use Pharborist\Node;
 6: 
 7: /**
 8:  * A variable variable.
 9:  *
10:  * For example, $$a
11:  */
12: class VariableVariableNode extends ParentNode implements VariableExpressionNode {
13:   /**
14:    * @var Node
15:    */
16:   protected $variable;
17: 
18:   /**
19:    * @return Node
20:    */
21:   public function getVariable() {
22:     return $this->variable;
23:   }
24: }
25: