1: <?php
 2: 
 3: namespace Cron;
 4: 
 5: /**
 6:  * Year field.  Allows: * , / -
 7:  */
 8: class YearField extends AbstractField
 9: {
10:     public function isSatisfiedBy(\DateTime $date, $value)
11:     {
12:         return $this->isSatisfied($date->format('Y'), $value);
13:     }
14: 
15:     public function increment(\DateTime $date, $invert = false)
16:     {
17:         if ($invert) {
18:             $date->modify('-1 year');
19:             $date->setDate($date->format('Y'), 12, 31);
20:             $date->setTime(23, 59, 0);
21:         } else {
22:             $date->modify('+1 year');
23:             $date->setDate($date->format('Y'), 1, 1);
24:             $date->setTime(0, 0, 0);
25:         }
26: 
27:         return $this;
28:     }
29: 
30:     public function validate($value)
31:     {
32:         return (bool) preg_match('/[\*,\/\-0-9]+/', $value);
33:     }
34: }
35: