--- /dev/null
+Special function variables
+-----
+<?php
+
+function a() {
+ global $a, ${'b'}, $$c;
+ static $c, $d = 'e';
+}
+-----
+array(
+ 0: Stmt_Function(
+ byRef: false
+ name: a
+ params: array(
+ )
+ returnType: null
+ stmts: array(
+ 0: Stmt_Global(
+ vars: array(
+ 0: Expr_Variable(
+ name: a
+ )
+ 1: Expr_Variable(
+ name: Scalar_String(
+ value: b
+ )
+ )
+ 2: Expr_Variable(
+ name: Expr_Variable(
+ name: c
+ )
+ )
+ )
+ )
+ 1: Stmt_Static(
+ vars: array(
+ 0: Stmt_StaticVar(
+ name: c
+ default: null
+ )
+ 1: Stmt_StaticVar(
+ name: d
+ default: Scalar_String(
+ value: e
+ )
+ )
+ )
+ )
+ )
+ )
+)