save a date from input into the database php

Question

The input eg 1327500671 is acquired during post method. I would like to save it into the database date column defined as "registerDate Date".

I couldn't find what date/time function can do this. I can fix the Date type in DB back into varchar, which makes things easier but I still would like to learn what type of format is most used to save datetimestamp into the database in more realife applications, as I am thinking they won't save it as 1/25/2012 21:49:00, for example.

Answer 1

May I suggest storing the timestamps in the database and using the PHP date() function to make them human readable as and when necessary:

$timeStamp = 1327500671 //a timestamp from the database
$registerDate = date("j-m-y H:i:s", $timeStamp)