CODEWITHSUNDEEP
phpphp-7php-carbon
blues
blues

Reputation: 5195

Why does Carbon::createFromFormat result in an error when used with week format?

This code:

Carbon::createFromFormat('Y-W', '2018-11');

throws this error:

The format separator does not match Trailing data

Why does this happen? The string clearly matches with the format, and it works when I use different formats and strings like 'Y-m-d' and '2018-11-11'. What is wrong with using the week number?

Upvotes: 1

Views: 1219

Answers (2)

KyleK
KyleK

Reputation: 5131

This usage is impossible in PHP (not related to Carbon):

https://3v4l.org/2KjXX

var_dump(\DateTime::createFromFormat('Y-W', '2018-11'));
var_dump(\DateTime::getLastErrors());

Output:

bool(false)
array(4) {
  ["warning_count"]=>
  int(0)
  ["warnings"]=>
  array(0) {
  }
  ["error_count"]=>
  int(2)
  ["errors"]=>
  array(2) {
    [5]=>
    string(35) "The format separator does not match"
    [6]=>
    string(13) "Trailing data"
  }
}

apokryfos's suggestion is good. But be careful, the year-week numbers have different meaning depending on cultures (different start of week, start of year). Carbon handle it with ->locale() method.

Upvotes: 2

apokryfos
apokryfos

Reputation: 40690

Since you're using carbon and given that you can't use "W" in the format you can do:

$date = Carbon::create(2018)->week(11);

Yields date:

2018-03-12 00:00:00.0 UTC (+00:00)

Upvotes: 1

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