1: <?php
 2: 
 3: namespace Cron;
 4: 
 5: use DateTime;
 6: 
 7: /**
 8:  * Month field.  Allows: * , / -
 9:  */
10: class MonthField extends AbstractField
11: {
12:     public function isSatisfiedBy(DateTime $date, $value)
13:     {
14:         // Convert text month values to integers
15:         $value = str_ireplace(
16:             array(
17:                 'JAN', 'FEB', 'MAR', 'APR', 'MAY', 'JUN',
18:                 'JUL', 'AUG', 'SEP', 'OCT', 'NOV', 'DEC'
19:             ),
20:             range(1, 12),
21:             $value
22:         );
23: 
24:         return $this->isSatisfied($date->format('m'), $value);
25:     }
26: 
27:     public function increment(DateTime $date, $invert = false)
28:     {
29:         if ($invert) {
30:             $date->modify('last day of previous month');
31:             $date->setTime(23, 59);
32:         } else {
33:             $date->modify('first day of next month');
34:             $date->setTime(0, 0);
35:         }
36: 
37:         return $this;
38:     }
39: 
40:     public function validate($value)
41:     {
42:         return (bool) preg_match('/[\*,\/\-0-9A-Z]+/', $value);
43:     }
44: }
45: