diff --git a/functions/array.xml b/functions/array.xml
index 2aa64ee374..4e3cffc9bf 100644
--- a/functions/array.xml
+++ b/functions/array.xml
@@ -13,6 +13,11 @@
     There are specific database handling functions for populating
     arrays from database queries, and several functions return arrays.
    </simpara>
+  <para>
+   Please see the <link linkend="language.types.array">Arrays</link>
+   section of the manual for a detailed explanation of how arrays are
+   implemented and used in PHP.
+  </para>
    <para>
     See also <function>is_array</function>, <function>explode</function>, 
     <function>implode</function>, <function>split</function> 
@@ -1781,7 +1786,7 @@ $result = compact ("event", "nothing_here", $location_vars);
      Returns 1 if the variable is not an array.
     </para>
     <para>
-     Returns 0 if the variable is not set.
+     Returns 0 if the variable is not set or is an empty array.
      <warning>
       <para>
        <function>Count</function> may return 0 for a variable that
@@ -1791,6 +1796,11 @@ $result = compact ("event", "nothing_here", $location_vars);
       </para>
      </warning>
     </para>
+   <para>
+    Please see the <link linkend="language.types.array">Arrays</link>                    
+    section of the manual for a detailed explanation of how arrays are
+    implemented and used in PHP.
+   </para>
     <para>
      <example>
       <title><function>Count</function> example</title>
@@ -1799,10 +1809,22 @@ $a[0] = 1;
 $a[1] = 3; 
 $a[2] = 5; 
 $result = count ($a);
-//$result == 3
+// $result == 3
+
+$b[0] = 7;
+$b[5] = 9;
+$b[10] = 11;
+$result = count ($b);
+// $result == 3;
       </programlisting>
      </example>
     </para>
+   <note>
+    <para>
+     The <function>sizeof</function> function is an alias for
+     <function>count</function>.
+    </para>
+   </note>
     <para>
      See also: <function>sizeof</function>,
      <function>isset</function>, and