diff --git a/src/Files/File.php b/src/Files/File.php
index 4d6414251b..b19738abf0 100644
--- a/src/Files/File.php
+++ b/src/Files/File.php
@@ -1735,18 +1735,20 @@ public function getMethodProperties($stackPtr)
             }
 
             $valid = [
-                T_STRING            => T_STRING,
-                T_CALLABLE          => T_CALLABLE,
-                T_SELF              => T_SELF,
-                T_PARENT            => T_PARENT,
-                T_STATIC            => T_STATIC,
-                T_FALSE             => T_FALSE,
-                T_TRUE              => T_TRUE,
-                T_NULL              => T_NULL,
-                T_NAMESPACE         => T_NAMESPACE,
-                T_NS_SEPARATOR      => T_NS_SEPARATOR,
-                T_TYPE_UNION        => T_TYPE_UNION,
-                T_TYPE_INTERSECTION => T_TYPE_INTERSECTION,
+                T_STRING                 => T_STRING,
+                T_CALLABLE               => T_CALLABLE,
+                T_SELF                   => T_SELF,
+                T_PARENT                 => T_PARENT,
+                T_STATIC                 => T_STATIC,
+                T_FALSE                  => T_FALSE,
+                T_TRUE                   => T_TRUE,
+                T_NULL                   => T_NULL,
+                T_NAMESPACE              => T_NAMESPACE,
+                T_NS_SEPARATOR           => T_NS_SEPARATOR,
+                T_TYPE_UNION             => T_TYPE_UNION,
+                T_TYPE_INTERSECTION      => T_TYPE_INTERSECTION,
+                T_TYPE_OPEN_PARENTHESIS  => T_TYPE_OPEN_PARENTHESIS,
+                T_TYPE_CLOSE_PARENTHESIS => T_TYPE_CLOSE_PARENTHESIS,
             ];
 
             for ($i = $this->tokens[$stackPtr]['parenthesis_closer']; $i < $this->numTokens; $i++) {
diff --git a/tests/Core/File/GetMethodPropertiesTest.inc b/tests/Core/File/GetMethodPropertiesTest.inc
index 1bc2c4bd8d..7f572f66c5 100644
--- a/tests/Core/File/GetMethodPropertiesTest.inc
+++ b/tests/Core/File/GetMethodPropertiesTest.inc
@@ -170,6 +170,25 @@ function pseudoTypeTrue(): ?true {}
 // Intentional fatal error - Type contains both true and false, bool should be used instead, but that's not the concern of the method.
 function pseudoTypeFalseAndTrue(): true|false {}
 
+/* testPHP82DNFType */
+function hasDNFType() : bool|(Foo&Bar)|string {}
+
+abstract class AbstractClass {
+    /* testPHP82DNFTypeAbstractMethod */
+    abstract protected function abstractMethodDNFType() : float|(Foo&Bar);
+}
+
+/* testPHP82DNFTypeIllegalNullable */
+// Intentional fatal error - nullable operator cannot be combined with DNF.
+function illegalNullableDNF(): ?(A&\Pck\B)|bool {}
+
+/* testPHP82DNFTypeClosure */
+$closure = function() : object|(namespace\Foo&Countable) {};
+
+/* testPHP82DNFTypeFn */
+// Intentional fatal error - void type cannot be combined with DNF.
+$arrow = fn() : null|(Partially\Qualified&Traversable)|void => do_something();
+
 /* testNotAFunction */
 return true;
 
diff --git a/tests/Core/File/GetMethodPropertiesTest.php b/tests/Core/File/GetMethodPropertiesTest.php
index 42649bc14e..273ff4b288 100644
--- a/tests/Core/File/GetMethodPropertiesTest.php
+++ b/tests/Core/File/GetMethodPropertiesTest.php
@@ -1187,6 +1187,136 @@ public function testPHP82PseudoTypeFalseAndTrue()
     }//end testPHP82PseudoTypeFalseAndTrue()
 
 
+    /**
+     * Verify recognition of PHP 8.2 DNF return type declaration.
+     *
+     * @return void
+     */
+    public function testPHP82DNFType()
+    {
+        // Offsets are relative to the T_FUNCTION token.
+        $expected = [
+            'scope'                 => 'public',
+            'scope_specified'       => false,
+            'return_type'           => 'bool|(Foo&Bar)|string',
+            'return_type_token'     => 8,
+            'return_type_end_token' => 16,
+            'nullable_return_type'  => false,
+            'is_abstract'           => false,
+            'is_final'              => false,
+            'is_static'             => false,
+            'has_body'              => true,
+        ];
+
+        $this->getMethodPropertiesTestHelper('/* '.__FUNCTION__.' */', $expected);
+
+    }//end testPHP82DNFType()
+
+
+    /**
+     * Verify recognition of PHP 8.2 DNF return type declaration on an abstract method.
+     *
+     * @return void
+     */
+    public function testPHP82DNFTypeAbstractMethod()
+    {
+        // Offsets are relative to the T_FUNCTION token.
+        $expected = [
+            'scope'                 => 'protected',
+            'scope_specified'       => true,
+            'return_type'           => 'float|(Foo&Bar)',
+            'return_type_token'     => 8,
+            'return_type_end_token' => 14,
+            'nullable_return_type'  => false,
+            'is_abstract'           => true,
+            'is_final'              => false,
+            'is_static'             => false,
+            'has_body'              => false,
+        ];
+
+        $this->getMethodPropertiesTestHelper('/* '.__FUNCTION__.' */', $expected);
+
+    }//end testPHP82DNFTypeAbstractMethod()
+
+
+    /**
+     * Verify recognition of PHP 8.2 DNF return type declaration with illegal nullability.
+     *
+     * @return void
+     */
+    public function testPHP82DNFTypeIllegalNullable()
+    {
+        // Offsets are relative to the T_FUNCTION token.
+        $expected = [
+            'scope'                 => 'public',
+            'scope_specified'       => false,
+            'return_type'           => '?(A&\Pck\B)|bool',
+            'return_type_token'     => 8,
+            'return_type_end_token' => 17,
+            'nullable_return_type'  => true,
+            'is_abstract'           => false,
+            'is_final'              => false,
+            'is_static'             => false,
+            'has_body'              => true,
+        ];
+
+        $this->getMethodPropertiesTestHelper('/* '.__FUNCTION__.' */', $expected);
+
+    }//end testPHP82DNFTypeIllegalNullable()
+
+
+    /**
+     * Verify recognition of PHP 8.2 DNF return type declaration on a closure.
+     *
+     * @return void
+     */
+    public function testPHP82DNFTypeClosure()
+    {
+        // Offsets are relative to the T_CLOSURE token.
+        $expected = [
+            'scope'                 => 'public',
+            'scope_specified'       => false,
+            'return_type'           => 'object|(namespace\Foo&Countable)',
+            'return_type_token'     => 6,
+            'return_type_end_token' => 14,
+            'nullable_return_type'  => false,
+            'is_abstract'           => false,
+            'is_final'              => false,
+            'is_static'             => false,
+            'has_body'              => true,
+        ];
+
+        $this->getMethodPropertiesTestHelper('/* '.__FUNCTION__.' */', $expected);
+
+    }//end testPHP82DNFTypeClosure()
+
+
+    /**
+     * Verify recognition of PHP 8.2 DNF return type declaration on an arrow function.
+     *
+     * @return void
+     */
+    public function testPHP82DNFTypeFn()
+    {
+        // Offsets are relative to the T_FN token.
+        $expected = [
+            'scope'                 => 'public',
+            'scope_specified'       => false,
+            'return_type'           => 'null|(Partially\Qualified&Traversable)|void',
+            'return_type_token'     => 6,
+            'return_type_end_token' => 16,
+            'nullable_return_type'  => false,
+            'is_abstract'           => false,
+            'is_final'              => false,
+            'is_static'             => false,
+            'has_body'              => true,
+        ];
+
+        $this->getMethodPropertiesTestHelper('/* '.__FUNCTION__.' */', $expected);
+
+    }//end testPHP82DNFTypeFn()
+
+
     /**
      * Test for incorrect tokenization of array return type declarations in PHPCS < 2.8.0.
      *