title: What is PHPSESSID?
body: <p>I'm playing around with cookies. And I dont have any cookies called PHPSESSID.</p>
  
  <p>Do i need it? Can i remove it?</p>
  
  <p>Whats the "function" of it?</p>
  
  <pre><code>if (count($_POST)) {
  
  setcookie("TestCookie", htmlspecialchars($_POST['val']), time()+3600);
  }
  
  print_r($_COOKIE);
  </code></pre>
  
  <p>Prints:</p>
  
  <pre><code>Array
  (
      [TestCookie] =&gt; blabla
      [PHPSESSID] =&gt; el4ukv0kqbvoirg7nkp4dncpk3
  )
  </code></pre>