How can I convert my date object to use it in Symfony formbuilder?

Question

I want to use a date in my formbuilder.

When I dump the variable $date I get the output:

DateTime @1536139353 {#2479 ▼
  date: 2018-09-05 11:22:33.0 Europe/Paris (+02:00)
}

When I try to use it now in my formbuilder like this:

$options['format'] = 'dd.MM.yyyy';
$options['data'] = new \DateTime($date);

Then I get an error message:

DateTime::__construct() expects parameter 1 to be string, object given

Answer 1

$date is already a datetime:

DateTime @1536139353 {#2479 ▼
  date: 2018-09-05 11:22:33.0 Europe/Paris (+02:00)
}

So there is no need to convert it like this new \DateTime($date);

The solution is:

$options['format'] = 'dd.MM.yyyy';
$options['data'] = $date;