ob_start(); callback function
<p>Is there any difference (performance or otherwise) to use ob_start in the following ways?</p>

<p>Option 1:</p>

<pre><code>function ob_handle($buffer){/*do something, and return buffer*/}
ob_start('ob_handle');
</code></pre>

<p>Option 2:</p>

<pre><code>ob_start(function($buffer){/*do something, and return buffer*/});
</code></pre>

<p>Thanks!</p>
