Time ago instead of Date & Time in PHP

Hi everyone

I have previously read PHP Eleven - Date and Time Functions in PHP to look for the following issue I am having, but did not find anything.
The suggested the main site here, but still no luck.
I am currently running a site witch displays the tome like this: 2013-03-19 17:02:43
I would like to display it like this - one day one 1 minute ago, 6 minutes ago, 3 hours ago, 2 days ago, 3 weeks ago, 1 month ago, 2 months ago, etc. (similar to Twitter)

Here is my PHP code displayed in a table:

Language: PHP
echo "<td bgcolor=\"7D7978\" class=';table7';>" . $row[';time';] . "</td>";

and here is my MySQL entry:

Language: SQL
`time` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,

you can format your time the way you want check www.php.net

gbakamela [77234715]

I am not on twitter, but from the top of my head, you will have the original datestamp in the db (when the post was first made), then get the date and time now (as the post is being read), then do some maths in the code (subtracting the posted date and time form the read date and time), and echo the result, formatting the code along the way.