title: Concatenation of php class static variables
body: <p>My first class:</p>
  
  <pre><code>&lt;?php
    require_once( 'error/DisconnectedHandler.php' );
    require_once( 'error/NoSuchRequestHandler.php' );
  
    class NetworkManager {
  
    public static final $RESPONSE_JUMP = 1000;
    ....
  </code></pre>
  
  <p>My second class:</p>
  
  <pre><code>&lt;?php
      require_once( '../NetworkManager.php' );
  
      class DisconnectedHandler implements Handler{
          public static $TYPE          = 2000;
          public static $RESPONSE_TYPE = self::$TYPE + NetworkManager::$RESPONSE_JUMP;
          public static $VER           = 0;
  </code></pre>
  
  <p>I get an error in this line: </p>
  
  <pre><code>public static $RESPONSE_TYPE = self::$TYPE + NetworkManager::$RESPONSE_JUMP;
  </code></pre>
  
  <p>Eclipse IDE paint <code>$TYPE</code> in red and says:</p>
  
  <pre><code>Multiple annotations found at this line:
  - syntax error, unexpected '$TYPE', expecting 
   'identifier'
  - syntax error, unexpected '$TYPE', expecting 
   'identifier'
  </code></pre>
  
  <p>What is the correct syntax for that?</p>