Add a number of days to a date

[rowantrimmer123]

I need to add a number of days to a date that is not todays date. Lets say that I want to add 16 days to '2009-03-27'. I have got my code to work if the date is todays as follows... which works a treat but I am wanting to replace the date('Y-m-d', with say '2009-03-27' or even a variable like $expiry_date.

I have trawled through the net but I am no further forward. I am hoping that someone out there could help me?😕

<?php

$daysleft=16;

$newexpiry_date=date('Y-m-d', strtotime("+$daysleft days")); print $newexpiry_date; print "<br>";

?>

[cahva]

Well heres an example and I dont think I have to explain it more 🙂:

<?php
$daysleft=16;
$origdate = '2009-03-27';

$d = new DateTime("{$origdate} +{$daysleft} day");
echo $d->format('Y-m-d');

// Or
$d = new DateTime($origdate);
$d->modify("+{$daysleft} day");

echo $d->format('Y-m-d');

[bpat1434]

Well, you can do [man]strtotime[/man]($date.' +'.$adding.' days'); to get the timestamp.

echo date('Y-m-d', strotime('2009-03-07 +'.$daysleft.' days'));

[man]date/man will just format a date. [man]strtotime/man will take a typical string and convert it to a timestamp. So just take the date string you want, then append "+ $daysleft days" to it and voila! You've got a timestamp.

Alternatively you could do:

$then = strtotime('2009-03-07');

$span = '16'; // Span in days
$toAdd = $span * (60 * 60 * 24);

$end = $then + $toAdd;

echo date('Y-m-d', $end);

But that one line of code is much cleaner