title: issue with json decode value stored in mysql
body: <p>I have the following value stored in mysql : <code>a:3:{i:0;s:2:"35";i:1;s:2:"33";i:2;s:2:"50";}</code> </p>
  
  <p>when I use</p>
  
  <pre><code> $value= 'a:3:{i:0;s:2:"35";i:1;s:2:"33";i:2;s:2:"50";}'
   $data_array = json_decode($value);
   var_dump($data_array);
  </code></pre>
  
  <p>this returns null.how can I return the values, in this case its 35 33 and 50.</p>