Calculate age (jQuery or PHP) based on date of birth [not based on user input]

Question

I am looking for a JavaScript or PHP script that allows me to calculate somebody\'s age based on his/her date of birth in the mm/dd/yyyy format. I found this ve

Answer 1

PHP:

$today = new DateTime();
$birthdate = new DateTime("1973-04-18 09:48:00");
$interval = $today->diff($birthdate);
echo $interval->format('%y years');

See it in action. You can obviously format the out to suit your needs.