1 echo date("Ymd",strtotime("now")), " "; 2 echo date("Ymd",strtotime("-1 week Monday")), " "; 3 echo date("Ymd",strtotime("-1 week Sunday")), " "; 4 echo date("Ymd",strtotime("+0 week Monday")), " "; 5 echo date("Ymd",strtotime("+0 week Sunday")), " "; 6 7 8 //date('n') 第几个月 9 //date("w") 本周周几 10 //date("t") 本月天数 11 12 echo '<br>上周:<br>'; 13 echo date("Y-m-d H:i:s",mktime(0, 0 , 0,date("m"),date("d")-date("w")+1-7,date("Y")))," "; 14 echo date("Y-m-d H:i:s",mktime(23,59,59,date("m"),date("d")-date("w")+7-7,date("Y")))," "; 15 echo '<br>本周:<br>'; 16 echo date("Y-m-d H:i:s",mktime(0, 0 , 0,date("m"),date("d")-date("w")+1,date("Y")))," "; 17 echo date("Y-m-d H:i:s",mktime(23,59,59,date("m"),date("d")-date("w")+7,date("Y")))," "; 18 19 echo '<br>上月:<br>'; 20 echo date("Y-m-d H:i:s",mktime(0, 0 , 0,date("m")-1,1,date("Y")))," "; 21 echo date("Y-m-d H:i:s",mktime(23,59,59,date("m") ,0,date("Y")))," "; 22 echo '<br>本月:<br>'; 23 echo date("Y-m-d H:i:s",mktime(0, 0 , 0,date("m"),1,date("Y")))," "; 24 echo date("Y-m-d H:i:s",mktime(23,59,59,date("m"),date("t"),date("Y")))," "; 25 26 $getMonthDays = date("t",mktime(0, 0 , 0,date('n')+(date('n')-1)%3,1,date("Y")));//本季度未最后一月天数 27 echo '<br>本季度:<br>'; 28 echo date('Y-m-d H:i:s', mktime(0, 0, 0,date('n')-(date('n')-1)%3,1,date('Y')))," "; 29 echo date('Y-m-d H:i:s', mktime(23,59,59,date('n')+(date('n')-1)%3,$getMonthDays,date('Y')))," ";
转自：http://www.cnblogs.com/whlives/p/5795458.html