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PHP function to get the timestamp of the first day of the specified month and the end of the last day

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Release： 2016-07-23 08:54:55
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  1. /**
  2. * Get the timestamp of the first day of the specified month and the end of the last day
  3. *
  4. * @param int $y year $m month
  5. * @return array (start time of this month, end time of this month)
  6. */
  7. function mFristAndLast($y="",$m=""){
  8. if($y=="") $y=date("Y");
  9. if($m=="") $m=date("m");
  10. $m=sprintf("%02d",intval($m));
  11. $y=str_pad(intval($y),4,"0",STR_PAD_RIGHT);
  13. $m>12||$m<1?$m=1:$m=$m;
  14. $firstday=strtotime($y.$m."01000000");
  15. $firstdaystr=date("Y-m-01",$firstday);
  16. $lastday = strtotime(date('Y-m-d 23:59:59', strtotime("$firstdaystr +1 month -1 day")));
  17. return array("firstday"=>$firstday,"lastday"=>$lastday);
  18. }
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PHP获取指定月份的第一天开始和最后一天结束的时间戳函数
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