Calculating the Difference Between Two Dates
The epoche value that can be determined by time() and other PHP functions can be used to easily calculate the difference between two dates. The trick is to convert the dates into time stamps (if not already available in this format). Then the difference between these two time stamps is calculated. The result is the time difference in seconds. This value can then be used to find out how many minutes, hours, and days this corresponds to:
The Difference Between Two Dates (timediff.php)<?php $century = mktime(12, 0, 0, 1, 1, 2001); $today = time(); $difference = $today - $century; echo 'This century started '; echo floor($difference / 84600); $difference -= 84600 * floor($difference / 84600); echo ' days, '; echo floor($difference / 3600); $difference -= 3600 * floor($difference / 3600); echo ' hours, '; echo floor($difference / 60); $difference -= 60 * floor($difference / 60); echo " minutes, and $difference seconds ago."; ?> If you start with the number of days, round down each result and substract this from the result; you can also split up the difference into days, hours, and minutes. |
