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<?php $a = "2009-01-01"; $b = "2016-02-15"; $i = date("Y", strtotime($a)); $result = array($i); while($i <= date("Y", strtotime($b))){ echo $i."\n"; array_push($result, $i); if(substr($i, 4, 2) == "12"){ $i = (date("Y", strtotime($i."01")) + 1); } else{ $i++; } } print_r($result);

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28.49 ms | 402 KiB | 5 Q