php - create days of week array from functions

gistfile1.txt

$date = new DateTime('first Sunday');

$weeksdays_array = array_map(function($val) use ($date) {return $date->add(new DateInterval('P'.$val.'D'))->format('l');}, range(0,6));
		
var_dump($weeksdays_array);

The whole point, of course, is to write it in a way that is actually longer than just typing.. $array(0=>'Sunday', 1=> ... );