- var_dump: documentation ( source)
- range: documentation ( source)
<?php
foreach (range(0,8) as $days) {
$a1 = new DateTime('2016-03-07 18:02:40');
$a1->modify("+$days days");
$a1->modify('next week');
echo $days . PHP_EOL;
var_dump($a1->format('d/m/Y'));
}