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php和mysql关于时间的实用函数

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Release: 2016-06-13 09:42:04
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//获得n天前的日期
function get_minday($n){
return date('Y-m-d',(time()-3600*24*($n-1)));

}


//获取日期的日
$a="2014-01-22";
$a=strtotime($a); //时间转为时间戳
echo date('d',$a);

//下个月一号
$reslut_date=date('Y-m-1',strtotime('+1 month',strtotime($row_date['date1'])));

//当月16号
$reslut_date=date('Y-m-16',strtotime($row_date['date1']));


date_add(SaleDate, INTERVAL 8 HOUR ) mysql,加8小时
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