title: how to extract data from CDATA
body: <p>I am extracting data from an XML and some tags have data inside CDATA in this way</p>
  
  <pre><code>&lt;description&gt;&lt;![CDATA[Changes (as compared to 8.17) include:
  Features:
      * Added a &amp;#8216;Schema Optimizer&amp;#8217; feature. Based on &amp;#8220;procedure analyse()&amp;#8221; it will propose alterations to data types for a table based on analysis on what data are stored in the table. The feature is available from INFO tab/HTML mode.  Refer to documentation for details.
      * A table can now be added [...]]]&gt;
  &lt;/description&gt;
  </code></pre>
  
  <p>I am already using preq_match to extract data from description tag.So How can I extract data from CDATA?</p>