title: How to change the background color of a html page using forms and php?
body: <p>After inputting a color of choice the page should change its background color. It should be done using html forms.</p>
  
  <pre><code>&lt;body bgcolor="&lt;?php $_GET["color"]; ?&gt;"&gt;
      &lt;form method="get" name="color"&gt;
          Background color:&lt;br&gt;
          &lt;input type="text" name="color"&gt;
          &lt;input type="submit" value="submit"&gt;
      &lt;/form&gt;
  &lt;/body&gt;
  </code></pre>