Drupal Render Form node.tpl

gistfile1.txt

  <div class="content clearfix"<?php print $content_attributes; ?>>
    <?php
      // We hide the comments and links now so that we can render them later.
      hide($content['comments']);
      hide($content['links']);
      drupal_render($content);

      // display only for authenticated users
      global $user;
      if ($user->uid) {
      	$form = drupal_get_form('sample_form'); // generates array
	print drupal_render($form); // prints out html
      }
    ?>
  </div>

Apparently, its bad practice to mix business logic with presentation by making a function call to render the custom form in the template file. There are more elegant solutions, based on what you're trying to accomplish, here is the initial thread that sheds more light on the topic - http://drupal.stackexchange.com/questions/22815/best-way-to-render-a-form-on-a-node

By calling the form in the preprocess phase, you can print out the results via print render($my_form);