diff --git a/language/types.xml b/language/types.xml
index 8b80185393..bc7699fe22 100644
--- a/language/types.xml
+++ b/language/types.xml
@@ -683,6 +683,13 @@ $foo = ( int ) $bar;
      between certain types. For instance, the following should be
      noted.
     </para>
+    <para>
+     When casting or forcing a conversion from array to string, the
+     result will be the word <literal>Array</literal>. When casting or
+     forcing a conversion from object to string, the result will be
+     the word <literal>Object</literal>. In both cases a warning will
+     be issued.
+    </para>
     <para>
      When casting from a scalar or a string variable to an array, the
      variable will become the first element of the array: