title: getting json_encode to not escape html entities
body: <p>I send <code>json_encoded</code> data from my PHP server to iPhone app. Strings containing html entities, like <code>'&amp;'</code> are escaped by <code>json_encode</code> and sent as <code>&amp;amp;</code>.</p>
  
  <p>I am looking to do one of two things:</p>
  
  <ul>
  <li><p>make <code>json_encode</code> not escape html entities. Doc says 'normal' mode shouldn't escape it but it doesn't work for me. Any ideas?</p></li>
  <li><p>make the iPhone app un-escape html entities cheaply. The only way I can think of doing it now involves spinning up a <code>XML/HTML parser</code> which is very expensive. Any cheaper suggestions?</p></li>
  </ul>
  
  <p>Thanks!</p>