//本周一,w为星期几的数字形式,这里0为周日echo date('Y-m-d', (time() - ((date('w') == 0 ? 7 : date('w')) - 1) * 24 * 3600))."\r\n";//本周日,同样使用w,以现在与周日相关天数算echo date('Y-m-d', (time() + (7 - (date('w') == 0 ? 7 : date('w'))) * 24 * 3600))."\r\n";//本周一$beginWeek = mktime(0,0,0,date("m"),date("d")-date("w")+1,date("Y"));//本周日$endWeek = mktime(23,59,59,date("m"),date("d")-date("w")+7,date("Y"));//上周一,无论今天几号,-1 monday为上一个有效周未,-1不行只能-2echo date('Y-m-d', strtotime('-2 monday', time()))."\r\n";//上周日,上一个有效周日,同样适用于其它星期echo date('Y-m-d', strtotime('-1 sunday', time()))."\r\n"; //本月一号echo date('Y-m-d', strtotime(date('Y-m', time()) . '-01 00:00:00'))."\r\n";//本月最后一天echo date('Y-m-d', strtotime(date('Y-m', time()) . '-' . date('t', time()) . ' 00:00:00'))."\r\n"; //t为当月天数,28至31天//本月一号$beginThismonth=mktime(0,0,0,date('m'),1,date('Y'));//本月最后一天$endThismonth=mktime(23,59,59,date('m'),date('t'),date('Y'));//上月一号echo strtotime(date('Ym01',strtotime('-1 month')))."\r\n"; //上月最后一天echo strtotime(date('Ymd 23:59:59', strtotime(date('Y-m-01') . ' -1 day')))."\r\n"; //本月一日减一天即是上月最后一日$season = ceil(date('n') /3); //获取月份的季度// 本季度dump(date('Y-m-01',mktime(0,0,0,($season - 1) *3 +1,1,date('Y'))));dump(date('Y-m-t',mktime(0,0,0,$season * 3,1,date('Y'))));//上季度dump(date('Y-m-01',mktime(0,0,0,($season - 2) * 3 +1,1,date('Y'))));dump(date('Y-m-t',mktime(0,0,0,($season - 1) * 3,1,date('Y'))));//上一年echo date('Y-01-01',strtotime('-1 year'));echo date('Y-12-31',strtotime('-1 year'));// PHP 获取某月份的第一天和最后一天$month = "-05";$sDate = date("Y-m-d", strtotime(date("Y-m", strtotime($month))));$eDate = date("Y-m-d", strtotime(date("Y-m", strtotime($month)) . "+1month-1day"));var_dump($sDate,$eDate); //-05-01, -05-31
