~~~ $today = date("Y-m-d");//今天 $yesterday=date("Y-m-d",strtotime("$today -1 day"));//昨天 $tomorrow=date("Y-m-d",strtotime("$today +1 day"));//明天 $weekDayStart=date('Y-m-d', strtotime('this week'));//本周第一天 （周一） $weekDayEnd=date('Y-m-d', strtotime('this week +6 day'));//本周最后一天(周日) $monthStart=date("Y-m-01",strtotime(date("Y-m-d")));//本月第一天 $monthEnd=date("Y-m-d",strtotime("$monthStart +1 month -1 day"));//本月最后一天 $LastMonthStart=date("Y-m-01",strtotime("$monthStart -1 month"));//上月第一天 $LastMonthEnd=date("Y-m-d",strtotime("$LastMonthStart +1 month -1 day"));//上月最后一天 ~~~