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<?php if (class_exists('DateTime')) { $date = new DateTime('2013-10-31'); $date->modify('-1 month'); printf("2013-10-31, -1 month: %s\n", $date->format('m')); $date = new DateTime('2013-10-31'); $date->modify('first day of 1 month ago'); printf("2013-10-31, first day of 1 month ago: %s\n", $date->format('m')); } else { print 'Not supported.'; }
Output for git.master, git.master_jit, rfc.property-hooks
2013-10-31, -1 month: 10 2013-10-31, first day of 1 month ago: 09

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