title: php include prints '1'
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/5086695/php-include-prints-1">php include prints 1</a>  </p>
  </blockquote>
  
  
  
  <pre><code>$html = '&lt;div class="subscribe_user"&gt;&lt;span id="question1"&gt;&lt;a href="#" id="subscribe_link" data-category="'.$category.'"&gt;
                  Subscribe to comments made on '.$category.'&lt;/a&gt;&lt;/span&gt;&lt;/div&gt;' . include(SUBSCRIBE_USER_BASE_DIR . '/includes/av_subscribe_form.php');
  </code></pre>
  
  <p>This include file is an HTML form with some PHP variables.</p>
  
  <p>I'm returning the $html via a plugin:</p>
  
  <pre><code>return $html;
  </code></pre>
  
  <p>But I cannot get rid of the '1' appended to the output. Of course this means it's a success for inputting the file but how can I work around this?</p>