title: Get specific element in Json string in php problem
body: <p>This is my data struuture:</p>
  
  <pre><code>array(6) { 
    ["id"]=&gt; string(15) "264729823543848" 
    ["application"]=&gt; array(2) { 
      ["name"]=&gt; string(7) "Prizzer" 
      ["id"]=&gt; string(15) "100398126714422" 
    } 
    ["to"]=&gt; array(2) { 
      ["name"]=&gt; string(18) "Danielle McPherson" 
      ["id"]=&gt; string(15) "100000204975672" 
    } 
    ["from"]=&gt; array(2) { 
      ["name"]=&gt; string(13) "Billy Zearott" 
      ["id"]=&gt; string(10) "1292797153" 
    }
    ["message"]=&gt; string(45) "Become my Prizzer Buddie and win Real Prizes!" 
    ["created_time"]=&gt; string(24) "2011-08-02T06:06:39+0000" 
  }
  </code></pre>
  
  <p>I get this by dumping the var:</p>
  
  <pre><code>$obj = json_decode($returned_content, true);
  var_dump($obj);
  </code></pre>
  
  <p>Now I need to extract only the value <code>"100000204975672"</code> which is the third id right after <code>"Danielle McPherson"</code>. How do I do that?</p>