how to subtract one date to another using php - php

Question

I want to subtract one date to another using php and display result in the days - hours - min - sec format. How i do this using php . I tried this using time stamp but it does not give proper values. please give suggestion
For ex : from date 2012-04-27 19:30:56 to date 2012-04-27 19:37:56
i used this code
if(strtotime($history['datetimestamp']) > strtotime($lasttime)) {
$totalelapsed1 = (strtotime($history['datetimestamp'])-strtotime($lasttime));
if($totalelapsed1 > 60 ) {
$sec = $totalelapsed1%60;
$min = round($totalelapsed1/60 , 0);
$minute = $min + $minute;
$second = $sec + $second;
// echo $min. " min " .$sec." sec";
} else {
//echo "0 min " . $totalelapsed1." sec";
$minute = 0 + $minute;
$second = $totalelapsed1 + $second;
}
} else {
$minute = 0 + $minute;
$second = 0 + $second;
// echo "0 min 0 sec";
}

Answer 1

From how to subtract two dates and times to get difference by VolkerK:
You have to use like this:-
<?php
//$now = new DateTime(); // current date/time
$now = new DateTime("2010-07-28 01:11:50");
$ref = new DateTime("2010-07-30 05:56:40");
$diff = $now->diff($ref);
printf('%d days, %d hours, %d minutes', $diff->d, $diff->h, $diff->i);
prints 2 days, 4 hours, 44 minutes
see http://docs.php.net/datetime.diff
edit: But you could also shift the problem more to the database side, e.g. by storing the expiration date/time in the table and then do a query like
... WHERE key='7gedufgweufg' AND expires<Now()
Many rdbms have reasonable/good support for date/time arithmetic.
Link Url:- how to subtract two dates and times to get difference
http://www.webpronews.com/calculating-the-difference-between-two-dates-using-php-2005-11

Answer 2

I suggest to use DateTime and DateInterval objects.
$date1 = new DateTime("2007-03-24");
$date2 = new DateTime("2009-06-26");
$interval = $date1->diff($date2);
echo "days difference ".$interval->d." days ";
read more php DateTime::diff manual

Answer 3

Try using DateTime:diff().
Examples are provided on that page.

Answer 4

This script resolve my issue
$date1 = date("d-m-Y H:i:s",strtotime($date1));
$date2 = date("d-m-Y H:i:s",strtotime($lasttime));
$diff = abs(strtotime($date2) - strtotime($date1));
$years = floor($diff / (365*60*60*24)); $months = floor(($diff - $years * 365*60*60*24) / (30*60*60*24)); $days = floor(($diff - $years * 365*60*60*24 - $months*30*60*60*24)/ (60*60*24));
$hours = floor(($diff - $years * 365*60*60*24 - $months*30*60*60*24 - $days*60*60*24)/ (60*60)); $minuts = floor(($diff - $years * 365*60*60*24 - $months*30*60*60*24 - $days*60*60*24 - $hours*60*60)/ 60); $seconds = floor(($diff - $years * 365*60*60*24 - $months*30*60*60*24 - $days*60*60*24 - $hours*60*60 - $minuts*60));
printf("%d years, %d months, %d days, %d hours, %d minuts\n, %d seconds\n", $years, $months, $days, $hours, $minuts, $seconds);