CODEWITHSUNDEEP
php
Alexandre Elshobokshy
Alexandre Elshobokshy

Reputation: 10922

Datetime not giving correct value using format function

I'm trying to compare 2 dates, by PHP's documentation : 

$date1 = new DateTime("now");
$date2 = new DateTime("tomorrow");
var_dump($date1 > $date2); //false

So now is not bigger than tomorrow, so it's false. Now I have this :

$date_start = \DateTime::createFromFormat('d/m/Y H:i', '18/07/2018 16:20');
$date_start_format = $date_start->format('d/m/Y H:i');

$date_end = \DateTime::createFromFormat('d/m/Y H:i', '01/08/2018 21:45');
date_end_format = $date_end->format('d/m/Y H:i');

var_dump($date_start_format > $date_end_format); //True

Now when I try to compare an ancient date, with tomorrow, like in the example, I get true. Which should return false, can someone please explain why?

Upvotes: 1

Views: 232

Answers (2)

AymDev
AymDev

Reputation: 7609

You should compare DateTime objects:

var_dump($date_start > $date_end);
# bool(false)

By comparing the result of the format() method you are comparing strings which is not what you are expecting to do.
To understand, compare your formatted dates character by character:

18/07/2018 16:20
01/08/2018 21:45
^-- 1 > 0

Upvotes: 7

Exterminator
Exterminator

Reputation: 1246

Try calculating the time stamp of each date then compare them

var_dump($date1->getTimestamp() > $date2->getTimestamp())

Upvotes: 0

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