title: Is there something called empty coalescing operator like Null coalescing operator
body: <p>PHP 7 adds the <a href="http://php.net/manual/en/migration70.new-features.php#migration70.new-features.null-coalesce-op" rel="nofollow noreferrer">null coalesce operator</a>:</p>
  
  <pre><code>// Fetches the value of $_GET['number'] and returns 'nonumber -NULL'
  // if it does not exist.
  $username = $_GET['number'] ?? 'No Number';
  // This is equivalent to:
  $username = isset($_GET['number']) ? $_GET['number'] : 'No Number';
  </code></pre>
  
  <p>Is there something for empty also?</p>
  
  <p>Looking for something like,</p>
  
  <pre><code>/ Fetches the value of $_GET['number'] and returns '0' Empty
  // if it does not empty.
  $username = $_GET['number'] ?? 'no number or number is 0 or empty';
  </code></pre>