Hello!
How can I get what date it will be after 31 days starting with $startDate, where $startDate is a string of this format: YYYYMMDD.
Thank you.
+5
A:
strtotime will give you a Unix timestamp:
$date = '20101007';
$newDate = strtotime($date.' + 31 days');
you can then use date to format that into the same format, if that's what you need:
echo date('Ymd', $newDate);
Tim Fountain
2010-10-07 17:04:23
Thank you, Tim. Is that the "best" way of doing this? I'm a bit worried about the `+31 days` part.
Francisc
2010-10-07 21:00:09
You just need to be conscious of what format `$date` is in; if you keep it in a standard format, you're fine - if you try to parse arbitrary formats (eg dd/mm/yyyy vs mm/dd/yyyy) you could run into problems. Pick one, make sure it works, and then enforce that format for all dates you use.
mway
2010-10-07 21:01:39
Thank you, mway.
Francisc
2010-10-09 01:43:49
+1
A:
Just a note that +1 month will also work if you want the same date on the next month and not 31 days exactly each time.
tandu
2010-10-08 05:16:39
+1
A:
If you're using PHP 5.3:
$date = new DateTime('20101007');
$date->add(new DateInterval('P31D');
echo $date->format('Y-m-d');
The pre-5.3 date functions are lacking, to say the least. The DateTime stuff makes it much easier to deal with dates. http://us3.php.net/manual/en/book.datetime.php
bradym
2010-10-08 05:56:19