Add two times to get total microsecond
<p>I want to add two dates and want total microsecond. Please tell me another way how to add it. I am adding timestramp and showing total. Please suggest me something. I have no idea and i found in google but didn't get anything. I need microsecond.</p>

<pre><code>&lt;?php
$st="2012-11-05 01:23:03";
$et="2012-11-07 05:23:04";

$totalMicroscond= $st+$et;

?&gt;
</code></pre>
