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<?php $a = "2014-12-01"; $b = "2015-01-01"; $i = date("Y-m", strtotime($a)); while($i <= date("Y-m", strtotime($b))){ echo $i."\n"; if(substr($i, 5, 2) == "12") $i = (date("Y", strtotime($i."-01")) + 1)."-01"; else $i++; }
Output for git.master, git.master_jit, rfc.property-hooks
2014-12 2015-01

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