How to convert date to timestamp in PHP?

Question

How do I get timestamp from e.g. 22-09-2008?

Answer 1

There is also strptime() which expects exactly one format:

$a = strptime('22-09-2008', '%d-%m-%Y');
$timestamp = mktime(0, 0, 0, $a['tm_mon']+1, $a['tm_mday'], $a['tm_year']+1900);