Dater and time - insert into website

PHP
1

I am making my own forum. I have only limited knowledge of dates and times. When someone makes a post I want to detect the time of the post and the date or maybe even the date time.

How would I write this in PHP. If I store this in a date and time within a database are there any problems with that

2

If you are using a database just have a field in the posts table that is a timestamp type. Then when you pull that back out to display use date and strtotime to format is the way you want, like:

date(‘format here’, strtotime($row[‘field_name’]));

http://us.php.net/manual/en/function.date.php

3

I suppose DB column is of type datetime

then you can simply code this way:
INSERT INTO table_name SET
post_date = now()