Namespace Pharborist\Variables
| CompoundVariableNode | A compound variable. |
| GlobalStatementNode | A global statement, e.g. global $a, $b |
| ReferenceVariableNode | A reference variable. |
| StaticVariableNode | A static variable declaration. |
| StaticVariableStatementNode | A static variable statement. |
| VariableNode | A basic variable. |
| VariableVariableNode | A variable variable. |
| VariableExpressionNode | Nodes that represent a variable in an expression. |