48 lines
1.1 KiB
PHP
48 lines
1.1 KiB
PHP
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<?php
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/**
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* Hours field. Allows: * , / -
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*
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* @author Michael Dowling <mtdowling@gmail.com>
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*/
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class CronExpression_HoursField extends CronExpression_AbstractField
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{
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/**
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* {@inheritdoc}
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*/
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public function isSatisfiedBy(DateTime $date, $value)
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{
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return $this->isSatisfied($date->format('H'), $value);
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}
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/**
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* {@inheritdoc}
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*/
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public function increment(DateTime $date, $invert = false)
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{
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// Change timezone to UTC temporarily. This will
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// allow us to go back or forwards and hour even
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// if DST will be changed between the hours.
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$timezone = $date->getTimezone();
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$date->setTimezone(new DateTimeZone('UTC'));
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if ($invert) {
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$date->modify('-1 hour');
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$date->setTime($date->format('H'), 59);
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} else {
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$date->modify('+1 hour');
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$date->setTime($date->format('H'), 0);
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}
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$date->setTimezone($timezone);
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return $this;
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}
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/**
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* {@inheritdoc}
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*/
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public function validate($value)
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{
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return (bool) preg_match('/[\*,\/\-0-9]+/', $value);
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}
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}
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