title: remove xml version tag when a xml is created in php
body: <p>I'm creating a xml using this</p>
  
  <pre><code>$customXML = new SimpleXMLElement('&lt;abc&gt;&lt;/abc&gt;');
  </code></pre>
  
  <p>after adding some attributes onto this, when I try to print it
  it appears like this,</p>
  
  <pre><code>&lt;?xml version="1.0"?&gt;
  &lt;abc id="332"&gt;&lt;params&gt;&lt;param name="aa"&gt;33&lt;/param&gt;&lt;/params&gt;&lt;/abc&gt;
  </code></pre>
  
  <p>Is there a way to remove the xml version node ?
  Thank you</p>