diff --git a/language/control-structures.xml b/language/control-structures.xml
index 5a40f805d0..561681bff8 100644
--- a/language/control-structures.xml
+++ b/language/control-structures.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.161 $ -->
+<!-- $Revision: 1.162 $ -->
  <chapter xml:id="language.control-structures" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
   <title>Control Structures</title>
 
@@ -126,7 +126,7 @@ if ($a > $b) {
   </sect1>
 
   <sect1 xml:id="control-structures.elseif">
-   <title><literal>elseif</literal></title>
+   <title><literal>elseif</literal>/<literal>else if</literal></title>
    <para>
     <literal>elseif</literal>, as its name suggests, is a combination
     of <literal>if</literal> and <literal>else</literal>.  Like
@@ -175,6 +175,44 @@ if ($a > $b) {
     <literal>elseif</literal> expression evaluated to
     &true;.
    </simpara>
+   <note>
+    <simpara>
+     Note that <literal>elseif</literal> and <literal>else if</literal>
+     will only be considered exactly the same when using curly brackets
+     as in the above example.  When using a colon to define your
+     <literal>if</literal>/<literal>elseif</literal> conditions, you must
+     separate <literal>else if</literal> into two words, or PHP will
+     fail with a parse error.
+    </simpara>
+   </note>
+   <para>
+    <informalexample>
+     <programlisting role="php">
+<![CDATA[
+<?php
+
+/* Incorrect Method: */
+if($a > $b):
+    echo $a." is greater than ".$b;
+else if($a == $b): // Will not compile.
+    echo "The above line causes a parse error.";
+endif;
+
+
+/* Correct Method: */
+if($a > $b):
+    echo $a." is greater than ".$b;
+elseif($a == $b): // Note the combination of the words.
+    echo $a." equals ".$b;
+else:
+    echo $a." is neither greater than or equal to ".$b;
+endif;
+
+?>
+]]>
+     </programlisting>
+    </informalexample>
+   </para>
   </sect1>
 
   <sect1 xml:id="control-structures.alternative-syntax">