How to convert date from one format to another?

Question

I\'m having the date in this format in a Excel worksheet 03-Dec-10. So its not compatible while inserting it into the database. How to convert the date to the acceptable format?

Answer 1

While Jon's answer is correct, here is another option:

$input = '03-Dec-10';
$date = date('Ymd', strtotime($input));