<?php
echo "<pre>"; echo date("Y-m-d",strtotime("now")), "\n"; echo "<pre>"; echo date("Y-m-d",strtotime("-1 week Monday")), "\n"; echo "<pre>"; echo date("Y-m-d",strtotime("-1 week Sunday")), "\n"; echo "<pre>"; echo date("Y-m-d",strtotime("+0 week Monday")), "\n"; echo "<pre>"; echo date("Y-m-d",strtotime("+0 week Sunday")), "\n"; echo "<pre>";
echo " * month:"; echo date('n'); echo "<pre>"; echo " * day of the week:"; echo date("w"); echo "<pre>"; echo " * days of this month:"; echo date("t");
echo "<pre>";
echo '<br>上周:<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 "<pre>"; echo '<br>本周:<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 "<pre>"; echo '<br>上上月:<br>'; echo date("Y-m-d H:i:s",mktime(0, 0 , 0,date("m")-2,1,date("Y"))),"\n"; echo date("Y-m-d H:i:s",mktime(23,59,59,date("m")-1,0,date("Y"))),"\n"; echo "<pre>";
echo '<br>上月:<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 "<pre>"; echo '<br>本月:<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"; echo "<pre>";
echo "<pre>"; $season = ceil((date('n'))/3)-2;//What quarter is the last quarter echo '<br>Last quarter:<br>'; echo date ('Ymd H:i:s', mktime(0, 0, 0,$season 3-3+1,1, date('Y'))), "\n"; echo date('Ymd H:i :s', mktime(23,59,59,$season 3,date('t',mktime(0, 0 , 0,$season*3,1,date("Y"))),date('Y '))),"\n"; echo "<pre>";
echo "<pre>"; $season = ceil((date('n'))/3)-1;//What quarter is the last quarter echo '<br>Last quarter:<br>'; echo date( 'Ymd H:i:s', mktime(0, 0, 0,$season 3-3+1,1,date('Y'))), "\n"; echo date('Ymd H:i: s', mktime(23,59,59,$season 3,date('t',mktime(0, 0 , 0,$season*3,1,date("Y"))),date('Y' ))),"\n"; echo "<pre>";
echo $season = ceil((date('n'))/3);//What quarter is the current month echo '<br>this quarter:<br>'; echo date('Ymd H:i:s', mktime(0, 0, 0,$season 3-3+1,1,date('Y'))),"\n"; echo date('Ymd H:i:s', mktime(23,59, 59,$season 3,date('t',mktime(0, 0 , 0,$season*3,1,date("Y"))),date('Y'))),"\n";
$season = ceil((date('n'))/3)+1;//What quarter is the current month echo '<br>Next quarter:<br>'; echo date('Ymd H:i:s' , mktime(0, 0, 0,$season 3-3+1,1,date('Y'))),"\n"; echo date('Ymd H:i:s', mktime(23,59 ,59,$season 3,date('t',mktime(0, 0 , 0,$season*3,1,date("Y"))),date('Y'))),"\n" ;
echo "<pre>";
?></pre>
Reprinted from https://www.open-open.com/code/view/1440168041411