View file File name : CronExpression_HoursField.php Content :<?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); } }