Creating a TimeStamp type column using PHP.Creating a TimeStamp type column using PHP.
This example illustrates how to create a timestamp type column.
In this example the PHP date() function formats a timestamp to a more readable date and time. A timestamp is the number of seconds since January 1, 1970 at 00:00:00 GMT. This is also known as the Unix Timestamp.
The first parameter in the date() function specifies how to format the date/time. It uses letters to represent date and time formats. Here are some of the letters that can be used:
The second parameter in the date() function specifies a timestamp. This parameter is optional. If you do not supply a timestamp, the current time will be used. In the mktime() function we create a timestamp for tomorrow. The mktime() function returns the Unix timestamp for a specified date.
Source Code of timestamp.php