title: add php inside the short code
body: <p>Well what I am trying to do is add a barcode to my wordpress sidebar. The plugin used to generate the barcode is called Yeblon</p>
  
  <p><a href="http://wordpress.org/extend/plugins/yeblon-qr-code-generator/" rel="nofollow">Yeblon Plugin Page</a></p>
  
  <p>the shortcode used by the plugin is </p>
  
  <pre><code>[yeblonqrcode size="100" url="" class="" style=""]
  </code></pre>
  
  <p>were url is the place were the generated barcode leads to</p>
  
  <p>The url I want to generate is inserted from the custom fields. I use a plugin called Advanced Custom Fields.</p>
  
  <p><a href="http://wordpress.org/extend/plugins/advanced-custom-fields/" rel="nofollow">Advanced Custom Fields Plugin Page</a></p>
  
  <p>the code that displays the link is </p>
  
  <pre><code>&lt;?php the_field("download_(android)" , $post-&gt;ID); ?&gt;
  </code></pre>
  
  <p>So my final code is</p>
  
  <pre><code>        &lt;div id="mobile-barcodes-tabs"&gt;
          &lt;?php $post = $wp_query-&gt;post; ?&gt;
          &lt;?php
          if(get_field('download_(android)')){ ?&gt;
              &lt;?php echo do_shortcode('[yeblonqrcode size="100" url="the_field("download_(android)" , $post-&gt;ID);" class="" style=""] ');?&gt;
          &lt;?php }
          ?&gt;
      &lt;/div&gt;
  </code></pre>
  
  <p>But it is not working I don't know what is the problem I will be glad if you helped me thanks in advance</p>