added some details on invalid characters in XML names, changed a few cdata

lines


git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@242390 c90b9560-bf6c-de11-be94-00142212c4b1

reference/simplexml/reference.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.21 $ -->
+<!-- $Revision: 1.22 $ -->
 <!-- Purpose: xml -->
 <!-- Membership: bundled, external -->
 
@@ -61,6 +61,9 @@ $xmlstr = <<<XML
    scripting language? All is revealed in this thrilling horror spoof
    of a documentary.
   </plot>
+  <great-lines>
+   <line>PHP solves all my web problems</line>
+  </great-lines>
   <rating type="thumbs">7</rating>
   <rating type="stars">5</rating>
  </movie>
@@ -84,6 +87,25 @@ $xml = new SimpleXMLElement($xmlstr);
 
 echo $xml->movie[0]->plot; // "So this language. It's like..."
 ?>
+]]>
+      </programlisting>
+     </example>
+    </para>
+    <para>
+     Accessing elements within an XML document that contain characters not permitted under 
+     PHP's naming convention (e.g. the hyphen) can be accomplished by encapsulating the
+     element name within curly braces and the apostrophe.
+     <example>
+      <title>Getting <literal>&lt;line&gt;</literal></title>
+      <programlisting role="php">
+<![CDATA[
+<?php
+include 'example.php';
+
+$xml = new SimpleXMLElement($xmlstr);
+
+echo $xml->movie->{'great-lines'}->line;; // "PHP solves all my web problems"
+?>
 ]]>
       </programlisting>
      </example>
@@ -95,7 +117,8 @@ echo $xml->movie[0]->plot; // "So this language. It's like..."
        When multiple instances of an element exist as children of
        a single parent element, normal iteration techniques apply.
       </simpara>
-      <programlisting role="php"><![CDATA[
+      <programlisting role="php">
+<![CDATA[
 <?php
 include 'example.php';