php date convert to seconds
<p>I am storing the date of a post in mysql database in this form y/m/d I want to check if the post is older than 3 days. Is there any way I can convert it to seconds ? and then check like so:</p>

<pre><code>if($mysql_date &gt; $three_days_old){
echo "old post";
}else {
echo "new post";
}
</code></pre>
