Understanding a PHP code snippet
<blockquote>
  <p><strong>Possible Duplicate:</strong><br>
  <a href="http://stackoverflow.com/questions/200640/are-php-short-tags-acceptable-to-use">Are PHP short tags acceptable to use?</a>  </p>
</blockquote>



<pre><code>&lt;?=$num2?&gt;
</code></pre>

<p>$num2 is calling data in an associative array. Is <code>&lt;?=</code> shorthand for <code>&lt;?php echo</code>...? If so what are the limitations and advantages of using this method? I've also noticed you can only use <code>=</code> if you're using the shorthand tags. Why is this?</p>
