diff --git a/language-snippets.ent b/language-snippets.ent
index 909894cfec..aff5d88623 100644
--- a/language-snippets.ent
+++ b/language-snippets.ent
@@ -200,15 +200,19 @@ been compiled into PHP or dynamically loaded at runtime.
 
 <!-- These are using in reference/$extname/reference.xml and other
 supplemental files to mark section titles -->
-<!ENTITY reftitle.intro     '<title>Introduction</title>'>
-<!ENTITY reftitle.required  '<title>Requirements</title>'>
-<!ENTITY reftitle.install   '<title>Installation</title>'>
-<!ENTITY reftitle.runtime   '<title>Runtime Configuration</title>'>
-<!ENTITY reftitle.resources '<title>Resource Types</title>'>
-<!ENTITY reftitle.constants '<title>Predefined Constants</title>'>
-<!ENTITY reftitle.classes '<title>Predefined Classes</title>'>
-<!ENTITY reftitle.examples  '<title>Examples</title>'>
-<!ENTITY reftitle.seealso   '<title>See Also</title>'>
+<!ENTITY reftitle.intro        '<title>Introduction</title>'>
+<!ENTITY reftitle.required     '<title>Requirements</title>'>
+<!ENTITY reftitle.install      '<title>Installation</title>'>
+<!ENTITY reftitle.runtime      '<title>Runtime Configuration</title>'>
+<!ENTITY reftitle.resources    '<title>Resource Types</title>'>
+<!ENTITY reftitle.constants    '<title>Predefined Constants</title>'>
+<!ENTITY reftitle.classes      '<title>Predefined Classes</title>'>
+<!ENTITY reftitle.constructor  '<title>Constructor</title>'>
+<!ENTITY reftitle.methods      '<title>Methods</title>'>
+<!ENTITY reftitle.properties   '<title>Properties</title>'>
+<!ENTITY reftitle.returnvalues '<title>Return values</title>'>
+<!ENTITY reftitle.examples     '<title>Examples</title>'>
+<!ENTITY reftitle.seealso      '<title>See Also</title>'>
 
 <!-- Common pieces for reference part END -->