Add procedural style to examples.

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@298193 c90b9560-bf6c-de11-be94-00142212c4b1

reference/datetime/datetime/diff.xml

@@ -60,7 +60,7 @@
  <refsect1 role="examples">
   &reftitle.examples;
   <example>
-   <title><function>date_diff</function> example</title>
+   <title>Object oriented style example of <function>DateTime::diff</function></title>
    <programlisting role="php">
 <![CDATA[
 <?php
@@ -73,13 +73,28 @@ echo $interval->format('%R%d days');
 ?>
 ]]>
    </programlisting>
-   &example.outputs;
-   <screen>
+  </example>
+  <example>
+   <title>Procedural style example of <function>date_diff</function></title>
+   <programlisting role="php">
+<![CDATA[
+<?php
+
+$first = new DateTime('2009-10-11');
+$second = new DateTime('2009-10-13');
+$interval = date_diff($first, $second);
+echo $interval->format('%R%d days');
+
+?>
+]]>
+   </programlisting>
+  </example>
+  &example.outputs;
+  <screen>
 <![CDATA[
 +2 days
 ]]>
-   </screen>
-  </example>
+  </screen>
  </refsect1>
 
  <refsect1 role="seealso">