/**
* Take a \DateTime object and get the date of the first day of its week
* dependant on global application settings.
*
* @param \DateTime $date A given date
* @param boolean $clock The locale week start day or time clock week start day
*
* @return \DateTime
*/
public function getFirstDayOfWeek(\DateTime $date, $clock = false)
{
if ($clock) {
$day = $this->appSettings->getWeekStartDayClock();
} else {
$day = $this->appSettings->getWeekStartDay();
}
$firstDay = idate('w', strtotime($day));
$offset = 7 - $firstDay;
$ret = clone $date;
$ret->modify(-(($date->format('w') + $offset) % 7) . 'days');
$ret->modify('midnight');
return $ret;
}
/**
* Run tests to ensure the output is correct for set/getWeekStartDay
*
* @return void
*/
public function testWeekStartDay()
{
$settings = new Settings();
$settings->setWeekStartDay("sunday");
$this->assertEquals("sunday", $settings->getWeekStartDay());
}
