title: HTML input function
body: <p>I want to know what <code>data-url</code> does in a <code>input</code> function? example there is this thing in the code I am working on - <code>&lt;input id="something" type="file" name="files[]" data-url="/index.php"&gt;</code></p>
  
  <p>Can someone please tell me what <code>data-url</code> does</p>
  
  <p>Thanks</p>