woocommerce/includes/libraries/action-scheduler/lib/cron-expression/CronExpression_YearField.php

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<?php
/**
* Year field. Allows: * , / -
*
* @author Michael Dowling <mtdowling@gmail.com>
*/
class CronExpression_YearField extends CronExpression_AbstractField
{
/**
* {@inheritdoc}
*/
public function isSatisfiedBy(DateTime $date, $value)
{
return $this->isSatisfied($date->format('Y'), $value);
}
/**
* {@inheritdoc}
*/
public function increment(DateTime $date, $invert = false)
{
if ($invert) {
$date->modify('-1 year');
$date->setDate($date->format('Y'), 12, 31);
$date->setTime(23, 59, 0);
} else {
$date->modify('+1 year');
$date->setDate($date->format('Y'), 1, 1);
$date->setTime(0, 0, 0);
}
return $this;
}
/**
* {@inheritdoc}
*/
public function validate($value)
{
return (bool) preg_match('/[\*,\/\-0-9]+/', $value);
}
}