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phpdatetimephp-carbon

Set a date by weeknumber with carbon

I know I can get the week number with Carbon by calling $my_date->weekOfYear. Is there a way to set a date by week number?

I mean is there something for initializing a date to the first day of the 3rd week of 2017 year?

I can initialize a date to the start of the year, I think it's a good start but I don't know what to do next:

$a = (new \Carbon\Carbon('2017-01-01'));
Solution

  • I believe setISODate takes care of this:

    $date = Carbon::now();
$date->setISODate(2017,3);
echo $date->startOfWeek();