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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" ; //本年起始
echo date (‘Y-01-01’);
//结束日期
echo date (‘Y-12-31’);
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