php 获取月份的所有日期
//$year 年
//$month 月
public function monthDate($year,$month){
$monthDate = array();
$mtime = strtotime($year.'-'.$month);
$t = date('t',$mtime);
$month = date('m',$mtime);
$st = $year.$month.'01';
$et = $year.$month.$t;
while($st<=$et) {
$monthDate[] = $st*1;
$st++;
}
return $monthDate;
}