title: PHP Switch True / False constant values
body: <p>Is there a way to switch the defined Constant values of true / false in PHP?  I am trying to make true = false and false = true.</p>
  
  <p>I've tried several attempts to do this but it does not seem to allow me to change:</p>
  
  <pre><code>define("false",1);
  define(false,1);
  false = true;
  </code></pre>
  
  <p>The final one results in a PHP internal server error, the first two simply do nothing.</p>
  
  <p>None of these seem to work.  Is true / false defined somewhere deeper within compiled PHP that cannot be re-set?</p>
  
  <p>Note: this is mostly for educational purposes and to understand how these values are defined, since it appears to be "untouchable".  I am not trying to write blasphemous code that checks things in reverse.</p>