PHP获取上周、本周、上月、本月、本季度、上季度时间方法大全

<?php

　　　　date_default_timezone_set('PRC');

　　　　date("Y-m-d H:i:s",strtotime(" +2 year"));

　　　　date("Y-m-d H:i:s",strtotime(" +2 month"));

　　　　date("Y-m-d H:i:s",strtotime(" +2 week"));

　　　　date("Y-m-d H:i:s",strtotime(" +2 day"));

　　　　date("Y-m-d H:i:s",strtotime(" +2 hour"));

　　　　date("Y-m-d H:i:s",strtotime(" +2 minute"));

　　　　date("Y-m-d H:i:s",strtotime(" +2 second"));

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"

;

　　　//　php两个日期相减得天数

　　　　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);

}

?>