Create UNIX PHP

Hello everyone, tell me how to create Unix time, I have a form in it selected time from 00:00 to 23:00 (hours and minutes) each to the silete and separately, I need it to be converted in Unix Time Time Time (); how to make?


Answer 1, Authority 100%

$date = "11/12/2011 14:28"; 
echo $stamp = strtotime($date) . "<br />";