<?php echo date("Ymd",strtotime("now")), "\n"; echo date("Ymd",strtotime("-1 week Monday")), "\n"; echo date("Ymd",strtotime("-1 week Sunday")), "\n"; echo date("Ymd",strtotime("+0 week Monday")), "\n"; echo date("Ymd",strtotime("+0 week Sunday")), "\n"; echo "*********第几个月:"; echo date('n'); echo "*********本周周几:"; echo date("w"); echo "*********本月天数:"; echo date("t"); echo "*********"; echo '<br>上周起始时间:<br>'; echo date("Y-m-d H:i:s",mktime(0, 0 , 0,date("m"),date("d")-date("w")+1-7,date("Y"))),"\n"; echo date("Y-m-d H:i:s",mktime(23,59,59,date("m"),date("d")-date("w")+7-7,date("Y"))),"\n"; echo '<br>本周起始时间:<br>'; echo date("Y-m-d H:i:s",mktime(0, 0 , 0,date("m"),date("d")-date("w")+1,date("Y"))),"\n"; echo date("Y-m-d H:i:s",mktime(23,59,59,date("m"),date("d")-date("w")+7,date("Y"))),"\n"; echo '<br>上月起始时间:<br>'; echo date("Y-m-d H:i:s",mktime(0, 0 , 0,date("m")-1,1,date("Y"))),"\n"; echo date("Y-m-d H:i:s",mktime(23,59,59,date("m") ,0,date("Y"))),"\n"; echo '<br>本月起始时间:<br>'; echo date("Y-m-d H:i:s",mktime(0, 0 , 0,date("m"),1,date("Y"))),"\n"; echo date("Y-m-d H:i:s",mktime(23,59,59,date("m"),date("t"),date("Y"))),"\n"; $season = ceil((date('n'))/3);//当月是第几季度 echo '<br>本季度起始时间:<br>'; echo date('Y-m-d H:i:s', mktime(0, 0, 0,$season*3-3+1,1,date('Y'))),"\n"; echo date('Y-m-d H:i:s', mktime(23,59,59,$season*3,date('t',mktime(0, 0 , 0,$season*3,1,date("Y"))),date('Y'))),"\n"; $season = ceil((date('n'))/3)-1;//上季度是第几季度 echo '<br>上季度起始时间:<br>'; echo date('Y-m-d H:i:s', mktime(0, 0, 0,$season*3-3+1,1,date('Y'))),"\n"; echo date('Y-m-d H:i:s', mktime(23,59,59,$season*3,date('t',mktime(0, 0 , 0,$season*3,1,date("Y"))),date('Y'))),"\n"; ?>
php는 두 날짜에서 일수를 뺍니다:
<?php function count_days($a,$b){ $a_dt=getdate($a); $b_dt=getdate($b); $a_new=mktime(12,0,0,$a_dt['mon'],$a_dt['mday'],$a_dt['year']); $b_new=mktime(12,0,0,$b_dt['mon'],$b_dt['mday'],$b_dt['year']); return round(abs($a_new-$b_new)/3600/24); } function count_days($formdate,$todate){ return round(abs(strtotime($formdate)-strtotime($todate))/3600/24); }