title: An unknown data representation notation in drupal
body: <pre><code>s:17:"thumbnail";
  s:1:"1";
  a:0:{}
  a:9:{s:5:"title";s:2:"-5";s:10:"body_field";s:1:"0";s:20:"revision_information";s:1:"3";s:6:"author";s:1:"2";s:7:"options";s:1:"4";s:4:"menu";s:2:"-1";s:4:"path";s:1:"5";s:12:"image_attach";s:2:"-4";s:13:"path_redirect";s:1:"6";}
  </code></pre>
  
  <p>What is the name of this notation? Who is responsible for its standardization? </p>