diff --git a/reference/session/sessionhandlerinterface.xml b/reference/session/sessionhandlerinterface.xml
index a80548b368..9c576e85f2 100644
--- a/reference/session/sessionhandlerinterface.xml
+++ b/reference/session/sessionhandlerinterface.xml
@@ -18,6 +18,10 @@
     session handler to <function>session_set_save_handler</function> using its
     <literal>OOP</literal> invocation, the class must implement this interface.
    </para>
+   <para>
+    Please note the callback methods of this class are designed to be called internally by
+    PHP and are not meant to be called from user-space code.
+   </para>
   </section>
 <!-- }}} -->
 
@@ -35,7 +39,7 @@
      </ooclass>
     </classsynopsisinfo>
 <!-- }}} -->
-    
+
     <classsynopsisinfo role="comment">&Methods;</classsynopsisinfo>
     <xi:include xpointer="xmlns(db=http://docbook.org/ns/docbook) xpointer(id('class.sessionhandlerinterface')/db:refentry/db:refsect1[@role='description']/descendant::db:methodsynopsis[1])" />
    </classsynopsis>
diff --git a/reference/session/sessionhandlerinterface/open.xml b/reference/session/sessionhandlerinterface/open.xml
index 68dcf506b7..8cb5f903cc 100644
--- a/reference/session/sessionhandlerinterface/open.xml
+++ b/reference/session/sessionhandlerinterface/open.xml
@@ -49,6 +49,18 @@
   </para>
  </refsect1>
 
+ <refsect1 role="seealso">
+  &reftitle.seealso;
+  <para>
+   <simplelist>
+    <member>
+     The <link linkend="ini.session.auto-start">session.auto-start</link>
+     configuration directive.
+    </member>
+   </simplelist>
+  </para>
+ </refsect1>
+
 </refentry>
 
 <!-- Keep this comment at the end of the file
diff --git a/reference/session/sessionhandlerinterface/read.xml b/reference/session/sessionhandlerinterface/read.xml
index c52461bab3..4abd7cfdb1 100644
--- a/reference/session/sessionhandlerinterface/read.xml
+++ b/reference/session/sessionhandlerinterface/read.xml
@@ -57,6 +57,18 @@
   </para>
  </refsect1>
 
+ <refsect1 role="seealso">
+  &reftitle.seealso;
+  <para>
+   <simplelist>
+    <member>
+     The <link linkend="ini.session.serialize-handler">session.serialize_handler</link>
+     configuration directive.
+    </member>
+   </simplelist>
+  </para>
+ </refsect1>
+
 </refentry>
 
 <!-- Keep this comment at the end of the file
diff --git a/reference/session/sessionhandlerinterface/write.xml b/reference/session/sessionhandlerinterface/write.xml
index 72b495de09..ac13d1457e 100644
--- a/reference/session/sessionhandlerinterface/write.xml
+++ b/reference/session/sessionhandlerinterface/write.xml
@@ -61,6 +61,18 @@
   </para>
  </refsect1>
 
+ <refsect1 role="seealso">
+  &reftitle.seealso;
+  <para>
+   <simplelist>
+    <member>
+     The <link linkend="ini.session.serialize-handler">session.serialize_handler</link>
+     configuration directive.
+    </member>
+   </simplelist>
+  </para>
+ </refsect1>
+
 </refentry>
 
 <!-- Keep this comment at the end of the file