diff --git a/phpunit/code/variable-variable-arraydim.php b/phpunit/code/variable-variable-arraydim.php
new file mode 100644
index 00000000..9a5db13f
--- /dev/null
+++ b/phpunit/code/variable-variable-arraydim.php
@@ -0,0 +1,8 @@
+<?php
+
+function variable_variable_with_array_dim(): void
+{
+    $foo = ['bar' => 'hello'];
+    ${$foo['bar']} = 'world';
+    echo $hello;
+}
diff --git a/phpunit/code/variable-variable-function-call.php b/phpunit/code/variable-variable-function-call.php
new file mode 100644
index 00000000..26fd0ef1
--- /dev/null
+++ b/phpunit/code/variable-variable-function-call.php
@@ -0,0 +1,12 @@
+<?php
+
+function variable_name(): string
+{
+    return 'hello';
+}
+
+function variable_variable_with_function_call(): void
+{
+    ${variable_name()} = 'world';
+    echo $hello;
+}
diff --git a/phpunit/src/VariableVariableTest.php b/phpunit/src/VariableVariableTest.php
new file mode 100644
index 00000000..8afce89b
--- /dev/null
+++ b/phpunit/src/VariableVariableTest.php
@@ -0,0 +1,14 @@
+<?php
+
+class VariableVariableTest extends \BaseTest
+{
+    public function testVariableVariableWithArrayDimThrowsUnsupportedError(): void
+    {
+        $this->exec('The `$$` syntax is not supported', 'variable-variable-arraydim.php');
+    }
+
+    public function testVariableVariableWithFunctionCallThrowsUnsupportedError(): void
+    {
+        $this->exec('The `$$` syntax is not supported', 'variable-variable-function-call.php');
+    }
+}
diff --git a/src/CompilerBase.php b/src/CompilerBase.php
index 074a1517..eff7eab5 100644
--- a/src/CompilerBase.php
+++ b/src/CompilerBase.php
@@ -1273,7 +1273,7 @@ class CompilerBase implements PropertyAccessContext
 
     protected function parseVariable(Variable $expr): string
     {
-        if (is_object($expr->name) and $this->isVarExpr($expr->name)) {
+        if (!is_string($expr->name)) {
             $this->fatalError($expr, 'The `$$` syntax is not supported');
         }
         if ($this->isSuperGlobal($expr->name)) {