diff --git a/appendices/tokens.xml b/appendices/tokens.xml
index aa74b5377f..fc5df01e31 100644
--- a/appendices/tokens.xml
+++ b/appendices/tokens.xml
@@ -658,9 +658,12 @@
T_STRING
- "$a['a']"
- string array index
- inside string
+ "parent"
+
+ identifiers, e.g. strings,
+ object oriented keywords like parent and self,
+ functions, classes and more are matched.
+
T_STRING_CAST