Substracting the n value in date()

Question

I want to implement a Javascript countdown timer that has the month value substracted by 1.

To get the date dynamically via PHP I use this code:

$date = "2014:3:19 00:00:00";
$newDate = date("Y, n, j, H, i", strtotime($date));

Which returns:

2014, 3, 9, 00

My question is how can I substract the value n by 1, so the final output will be always like this:

2014, (3-1), 9, 00

do u want out out (n-1) or the result of (n-1)? – Jason OOO Mar 21 '14 at 02:08 — Jason OOO, Mar 21 '14 at 02:08
hi Jason, I want the result of n-1 – zoora Mar 21 '14 at 02:09 — zoora, Mar 21 '14 at 02:09

score 3 · Answer 1 · answered Mar 21 '14 at 02:12

Here's the DateTime() way to do it (I used dashes instead of colons as that is the proper separator for date parts):

$date = "2014-3-19 00:00:00";
$date = (new DateTime($date))->modify('-1 month')->format("Y, n, j, H, i");

or

$date = "2014-3-19 00:00:00";
$date = (new DateTime($date))->diff(new DateInterval('P1M'))->format("Y, n, j, H, i");

xdazz · Accepted Answer · 2014-03-21T02:46:19.597

1

If you mean minus one month, then you could do:

$date = "2014-3-19 00:00:00";
$newDate = date("Y, n, j, H, i", strtotime('-1 month', strtotime($date)));

And 2014, 1, 19, 00 will be 2013, 12, 19, 00 but not 2014, 0, 19, 00.

Update:

You want to pass a date to the jQuery plugin(jquery.magicbusmultimedia.net).

The plugin only ask you to pass a javascript Date object.

So you could do:

$('#myCounter').mbComingsoon(new Date(<?php echo strtotime($date); ?> * 1000));

edited Mar 21 '14 at 02:46

answered Mar 21 '14 at 02:09

xdazz

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Umm how to get result 2014, 0, 19, 00, not 2013, 12, 19, 00 ? – zoora Mar 21 '14 at 02:16
@zoora There is no month zero – John Conde Mar 21 '14 at 02:18
@zoora Could you tell me first why you want month zero? – xdazz Mar 21 '14 at 02:22
@John yes exactly, but the javascript countdown code I used asking me to enter the month value substracted by -1 :( It's http://jquery.magicbusmultimedia.net/ – zoora Mar 21 '14 at 02:25
@zoora As I expected, javascript Date issue. Then, you should not do it in php, just do it in javascript, and i even think you don't have to format the date in php. – xdazz Mar 21 '14 at 02:29
@xdazz ahh ... so should I use other javascript countdown script? – zoora Mar 21 '14 at 02:35
@zoora See my updated answer. You could construct the js Date object from unix timestamp. – xdazz Mar 21 '14 at 02:47

score 0 · Answer 3 · answered Mar 21 '14 at 02:35

0

$date = "2014-3-19 00:00:00"; $newDate = date("Y, n, j, H, i", strtotime('-1 month', strtotime($date))); And 2014, 1, 19, 00 will be 2013, 12, 19, 00 but not 2014, 0, 19, 00.

answered Mar 21 '14 at 02:35

Substracting the n value in date()

3 Answers3