What is the difference between quotes inside array
<blockquote>
  <p><strong>Possible Duplicate:</strong><br>
  <a href="http://stackoverflow.com/questions/2405482/is-it-okay-to-use-arraykey-in-php">Is it okay to use array[key] in PHP?</a>  </p>
</blockquote>



<p>Is there any significant different between</p>

<p><code>$test['car']</code> and <code>$test[car]</code> </p>

<p>Both produce same result.</p>
