如何使用document.getElementById（）添加广告？

Question

I have a with an id of "ad". I am trying to put in an adsense ad in there using JavaScript when a user meets a condition. Basically when a user meets a certain condition, ads will be shown.

This is my code:

if ($resultTot = $db->query($queryTot)) 
    {
        $data = $resultTot->fetch_assoc();

     if($data["total"]>1)
        {
                echo "<script>
                    document.getElementById('ad').innerHTML = 'async src='//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js'
<!-- YC2 ads -->
<ins class='adsbygoogle'
     style='display:block'
     data-ad-client='ca-pub-4557496244647182'
     data-ad-slot='4151529047'
     data-ad-format='auto'></ins>

(adsbygoogle = window.adsbygoogle || []).push({});

                </script>";


     }
  }

When I use document.getElementId() to change let's say ap tag, it works. I just can't get the adsense to display. Any ideas on how I can add it in there and why my code isn't working?

Answer 1

You just need to print regular AdSense JS code. No need to get any elements with JS.

Currently you are just editing contents of #ad DOM element. This dosen't work, because it has to be <script> and not inside of it. src is attribute.

It must end up like this

<script async src='//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js'></script>

So, use this:

if ($resultTot = $db->query($queryTot)) 
{
  $data = $resultTot->fetch_assoc();

  if($data["total"]>1)
  {
    echo "
    <div id='ad'>
      <!-- YC2 ads -->
      <ins class='adsbygoogle'
           style='display:block'
           data-ad-client='ca-pub-4557496244647182'
           data-ad-slot='4151529047'
           data-ad-format='auto'></ins>
      <script>
      (adsbygoogle = window.adsbygoogle || []).push({});
      </script>
    </div>
    <script>
      var script = document.createElement('script');
      script.async = true;
      script.src = '//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js';
      document.getElementById('ad').appendChild(script);
    </script>
    ";
  }
}