title: Can I inject php code in the url in part thats displayed on screen?
body: <p>Hey this is my very simple code: </p>
  
  <pre><code>&lt;?php
  $test= $_GET['test'];
  echo $test;
  
  ?&gt;
  </code></pre>
  
  <p>And in the url I wrote this:</p>
  
  <pre><code>test.php?test=system('dir')  
  </code></pre>
  
  <p>Why does it not execute the command and why is it not displayed?</p>