converting date functions from javascript to php

Question

I am coverting a time differnce function I made over a year ago in javascript to a php function. Most of it is pretty similar but there's one part I just cant figure out. the setMonth() function is kind of similar to $date->modify, but the values are returned in different formats and it's confusing me. If any one can find a php equivelent to the following javascript I would be most grateful. Thanks.

 var date1 = new Date();
 var date2 = date('some date');

 var dayDiff = date1.setMonth(date1.getMonth() + month);   
 var  day = Math.abs(Math.floor((date2.getTime() - dayDiff) / (1000 * 60 * 60 * 24)));

Plus the fact that it's simply a bad code in JS. dayDiff isn't the day difference, it's the current date month + an amount of months added... As @Dagon said, you better know what you really want, don't try to port things that seem badly coded. Is it a function that returns the number of days difference between the {currentDate} and the {currentDate + n * months}? — Micaël Félix
– Micaël Félix, Commented Nov 16, 2014 at 22:21
this part ofthe function is to determine the amount of days after a month as there are different numbers of days in month eg. 32 days could be a month and one day in January or it could be a month and 4 days in February. the varable names are bit confusing. sorry — user2014429
– user2014429, Commented Nov 16, 2014 at 22:27

Community · Accepted Answer · 2020-06-20 09:12:55Z

1

Official website of php: http://php.net/manual/fr/datetime.diff.php

Add your months using -> modify

$currentDate -> modify('+' . $months . ' month');

Get the date difference using -> diff

$interval = $currentDate -> diff($otherDate, true);

The second boolean parameter indicates that you do not care about negative differences, output will always be positive (as your Math.abs did in the javascript version).

And output it with -> format

$interval->format('%R%a days')

Full example

// If you need to set the timezone
date_default_timezone_set('America/New_York');

// Whatever month you want to add to $currentDate
$months = 2; // months has to be an int

$currentDate = new DateTime();
$otherDate   = new DateTime('2014-01-04');

$currentDate -> modify('+' . $months . ' month');

$interval = $currentDate -> diff($otherDate, true);

echo($interval->format('%R%a days'));

edited Jun 20, 2020 at 9:12

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answered Nov 16, 2014 at 22:42

Micaël Félix

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converting date functions from javascript to php

1 Answer 1

Add your months using -> modify

Get the date difference using -> diff

And output it with -> format

Full example

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Your Answer

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Collectives™ on Stack Overflow

1 Answer 1

Add your months using -> modify

Get the date difference using -> diff

And output it with -> format

Full example

Comments

Your Answer

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