From c7c5b9cbe2f3b77179ebc08ca87a62c372bd24b2 Mon Sep 17 00:00:00 2001
From: Justin Martin <frozenfire@php.net>
Date: Thu, 12 Jan 2012 05:23:03 +0000
Subject: [PATCH] Clarified highly-misleading (unset) casting example. Resolves
 bug #55164.

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@322117 c90b9560-bf6c-de11-be94-00142212c4b1
---
 reference/var/functions/unset.xml | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/reference/var/functions/unset.xml b/reference/var/functions/unset.xml
index ff510e6cc0..6fb29ad778 100644
--- a/reference/var/functions/unset.xml
+++ b/reference/var/functions/unset.xml
@@ -228,16 +228,30 @@ unset($foo1, $foo2, $foo3);
     </programlisting>
    </example>
    <example>
-    <title>Using (unset) casting</title>
+    <title>Using <literal>(unset)</literal> casting</title>
+    <para>
+     <literal>(unset)</literal> casting is often confused with the
+     <function>unset</function> function. <literal>(unset)</literal>
+     casting serves only as a <literal>NULL</literal>-type cast, for
+     completeness. It does not alter the variable it's casting.
+    </para>
     <programlisting role="php">
 <![CDATA[
 <?php
 $name = 'Felipe';
 
 var_dump((unset) $name);
+var_dump($name);
 ?>
 ]]>
     </programlisting>
+    &example.outputs;
+    <screen>
+<![CDATA[
+NULL
+string(6) "Felipe"
+]]>
+    </screen>
    </example>
   </para>
  </refsect1>