title: Can't decode JSON string in php
body: <p>I have the following JSON string, i try to decode with php json_decode but $postarray
  is always NULL, can't work out why this is?</p>
  
  <p>Running on Debian 5.0 Linux
  php Client API version => 5.0.51a
  Json version 1.2.1</p>
  
  <pre><code> $json = '{\"json\":[{\"username\":\"1062576\",\"accountId\":\"45656565\"}]}';
  
   $postarray = json_decode($json);
   print_r($postarray);
  </code></pre>
  
  <p>Thanks</p>