CODEWITHSUNDEEP
laraveldatetimephp-carbon
Konjesh Esbrading
Konjesh Esbrading

Reputation: 404

laravel carbon original date changed after adding year

So I'm trying to add a year based on the user registration date, and I need to compare the date, but it's updating the original date from registration date.

$registered_at = Carbon::parse('2020-10-17 03:05:03');
$final_date = $registered_at->addYear();

echo $registered_at.'<br>';
echo $final_date;

result is the same, I want to preserved the registered_at date to 2020-10-17 03:05:03

registered_at : 2021-10-17 03:05:03
final date:     2021-10-17 03:05:03

I am expecting 2020-10-17 03:05:03

registered_at : 2020-10-17 03:05:03
final date:     2021-10-17 03:05:03

Upvotes: 0

Views: 949

Answers (4)

KyleK
KyleK

Reputation: 5131

When you don't want your instances to be mutated on add/sub/set, use CarbonImmutable:

$registered_at = CarbonImmutable::parse('2020-10-17 03:05:03');
$final_date = $registered_at->addYear();

echo $registered_at.'<br>';
echo $final_date;

Else use ->copy() to create a new instance.

Upvotes: 1

STA
STA

Reputation: 34848

Add addYear() value :

$registered_at = Carbon::parse('2020-10-17 03:05:03');
$final_date = $registered_at->addYear(1); // added 1 year

echo $registered_at; // 2020-10-17 03:05:03
echo $final_date; // 2021-10-17 03:05:03

Upvotes: 1

Henry Bui
Henry Bui

Reputation: 703

In Carbon, when you call any method, it will change the instance.

In your case, you should use the copy() method to make a new instance before call method.

Ex:

$registered_at = Carbon::parse('2020-10-17 03:05:03');
$final_date = $registered_at->copy()->addYear();

echo $registered_at.'<br>';
echo $final_date;

Upvotes: 3

Muhammad Dyas Yaskur
Muhammad Dyas Yaskur

Reputation: 8138

You need to copy the instance first like this:

$date_parse    = Carbon::parse('2020-10-17 03:05:03');
$registered_at = $date_parse->copy();;
$final_date    = $date_parse->addYear();

echo $registered_at.'<br>';
echo $final_date;

Upvotes: 1

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