# notifier/1.0.0/libraries/action-scheduler/lib/cron-expression/CronExpression_HoursField.php

WANotifier for Forms and Actions, version 1.0.0. 48 lines.

- Page: https://pluginprobe.com/plugins/notifier/1.0.0/code/libraries/action-scheduler/lib/cron-expression/CronExpression_HoursField.php
- Raw: https://pluginprobe.com/plugins/notifier/1.0.0/raw/libraries/action-scheduler/lib/cron-expression/CronExpression_HoursField.php
- Modified: 2022-10-09T10:49:20+00:00

Line numbers below start at 1. Link to a line or a range by appending a fragment to the
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```php
<?php

/**
 * Hours field.  Allows: * , / -
 *
 * @author Michael Dowling <mtdowling@gmail.com>
 */
class CronExpression_HoursField extends CronExpression_AbstractField
{
    /**
     * {@inheritdoc}
     */
    public function isSatisfiedBy(DateTime $date, $value)
    {
        return $this->isSatisfied($date->format('H'), $value);
    }

    /**
     * {@inheritdoc}
     */
    public function increment(DateTime $date, $invert = false)
    {
        // Change timezone to UTC temporarily. This will
        // allow us to go back or forwards and hour even
        // if DST will be changed between the hours.
        $timezone = $date->getTimezone();
        $date->setTimezone(new DateTimeZone('UTC'));
        if ($invert) {
            $date->modify('-1 hour');
            $date->setTime($date->format('H'), 59);
        } else {
            $date->modify('+1 hour');
            $date->setTime($date->format('H'), 0);
        }
        $date->setTimezone($timezone);

        return $this;
    }

    /**
     * {@inheritdoc}
     */
    public function validate($value)
    {
        return (bool) preg_match('/[\*,\/\-0-9]+/', $value);
    }
}

```