title: difference between require(__DIR__ . '/file.php') and require('file.php')
body: <p>As asked in the title, whats the difference between</p>
  
  <pre><code>require(__DIR__ . '/file.php')
  </code></pre>
  
  <p>and</p>
  
  <pre><code>require('file.php')
  </code></pre>
  
  <p>?</p>
  
  <p>(when both files are in the same folder)</p>
  
  <p>Thank you all for your help!</p>