public function Interval::add in Commerce Core 8.2

Adds the interval to the given date.

Parameters

\Drupal\Core\Datetime\DrupalDateTime $date: The date.

Return value

\Drupal\Core\Datetime\DrupalDateTime The new date.

1 call to Interval::add()

Interval::ceil in src/Interval.php

Increases the date to the upper boundary.

File

src/Interval.php, line 95

Class

Interval

Provides a value object for intervals (1 month, 14 days, etc).

Namespace

Drupal\commerce

Code

public function add(DrupalDateTime $date) : DrupalDateTime {

  /** @var \Drupal\Core\Datetime\DrupalDateTime $new_date */
  $new_date = clone $date;
  $new_date
    ->modify('+' . $this
    ->__toString());

  // Jan 31st + 1 month should give Feb 28th, not Mar 3rd.
  if ($this->unit == 'month' && $new_date
    ->format('d') !== $date
    ->format('d')) {
    $new_date
      ->modify('last day of previous month');
  }
  return $new_date;
}