title: parse UTF-16 encoded string as xml
body: <p>I have a <code>UTF-16</code> encoded xmlstring that I want to parse with php.
  encoding to <code>UTF-8</code> isn't possible because not all the content can be represented in <code>UTF-8</code></p>
  
  <p>The problem is that when I try to use the <code>xml_parser_create("UTF-16")</code> and <code>xml_parse_into_struct</code> functions I get a message about UTF-16 not being supported.</p>
  
  <p>What are my options?</p>