TestStringifyKeysOnMapWithEntriesRecursively

util.go

@@ -11,6 +11,10 @@ func StringifyKeys(m map[interface{}]interface{}) (out map[string]interface{}) {
 	out = map[string]interface{}{}
 
 	for k, v := range m {
+		if x, ok := v.(map[interface{}]interface{}); ok {
+			v = StringifyKeys(x)
+		}
+
 		out[k.(string)] = v
 	}
 

util_test.go

@@ -31,3 +31,25 @@ func TestStringifyKeysOnMapWithEntries(t *testing.T) {
 		t.Errorf("Expected:\n  %#+v\nGot:\n  %#+v", expected, result)
 	}
 }
+
+func TestStringifyKeysOnMapWithEntriesRecursively(t *testing.T) {
+	m := map[interface{}]interface{}{
+		"foo": map[interface{}]interface{}{
+			"foo": "bar",
+			"baz": 123,
+		},
+		"baz": 123,
+	}
+	result := phpserialize.StringifyKeys(m)
+	expected := map[string]interface{}{
+		"foo": map[string]interface{}{
+			"foo": "bar",
+			"baz": 123,
+		},
+		"baz": 123,
+	}
+
+	if !reflect.DeepEqual(result, expected) {
+		t.Errorf("Expected:\n  %#+v\nGot:\n  %#+v", expected, result)
+	}
+}