What are the arguments IN FAVOR of PHP closing tags for PHP only files?
<p>The Zend Framework coding standard mentions the following:</p>

<blockquote>
For files that contain only PHP code, the closing tag ("?>") is never permitted. It is not required by PHP, and omitting it prevents the accidental injection of trailing whitespace into the response.
</blockquote>

<ul>
<li><a href="http://framework.zend.com/manual/en/coding-standard.php-file-formatting.html">Zend Framework coding standard: file formatting</a></li>
</ul>

<p>However I do remember hearing about an issue (with tooling or including maybe?) where files needed to have closing tag.</p>

<p>Does anyone know of any issues (other than the developer issue of wanting symmetry) where you would need to have closing tags or are they generally a bad idea?</p>
