Returns day of week for a given date (0 = Sunday).

Parameters

mixed $date: (optional) A DrupalDateTime object or a date string. Defaults to NULL, which means use the current date.

Return value

int The number of the day in the week.

1 call to DateHelper::dayOfWeek()

DateHelper::dayOfWeekName in core/lib/Drupal/Core/Datetime/DateHelper.php

Returns translated name of the day of week for a given date.

File

core/lib/Drupal/Core/Datetime/DateHelper.php, line 500

Class

DateHelper

Defines Gregorian Calendar date values.

Namespace

Drupal\Core\Datetime

Code

public static function dayOfWeek($date = NULL) {
  if (!$date instanceof DrupalDateTime) {
    $date = new DrupalDateTime($date);
  }
  if (!$date->hasErrors()) {
    return $date->format('w');
  }
  return NULL;
}

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