title: Clearing _POST array fully
body: <p>I want clear $_POST array content fully, all examples what I see in internet, looks like this:</p>
  
  <pre><code>if (count($_POST) &gt; 0) {
      foreach ($_POST as $k=&gt;$v) {
          unset($_POST[$k]);
      }
  }
  </code></pre>
  
  <p>Tell please, this variant will be not more better? (Point of view as saving resources)</p>
  
  <pre><code>if (count($_POST) &gt; 0) {
       $_POST = array();
  }
  </code></pre>
  
  <p>or not ?</p>