Validate if age is over 18 years old
<p>Just wondering, can I do this to validate that a user has entered a date over 18?</p>

<pre><code>//Validate for users over 18 only
function time($then, $min)
{
$then = strtotime('March 23, 1988');
//The age to be over, over +18
$min = strtotime('+18 years', $then);
echo $min;
if(time() &lt; $min) 
{
die('Not 18'); 
}
}
</code></pre>

<p>Just stumbled across this function date_diff:
<a href="http://www.php.net/manual/en/function.date-diff.php" rel="nofollow">http://www.php.net/manual/en/function.date-diff.php</a>
Looks, even more promising.</p>
