$getWeekDay=date(“w“);

$today_start = mktime(0, 0, 0, date(“m“) , date(“d“), date(“Y“)); //今天
$today_end = mktime(0, 0, 0, date(“m“) , date(“d“)+1, date(“Y“));

$smonth_start = mktime(0, 0, 0, date(“m“), date(“d“), date(“Y“)); //本月
$smonth_end= mktime(0, 0, 0, date(“m“)-1, date(“d“), date(“Y“));

$week_start = mktime(0,0,0,date(“m“),date(“d“)-$getWeekDay+1-7,date(“Y“)); //本周
$week_end = mktime(0,0,0,date(“m“),date(“d“)-$getWeekDay+7-7,date(“Y“));

$year_start = mktime(0, 0, 0, date(“m“), date(“d“), date(“Y“)); //今年
$year_end = mktime(0, 0, 0, date(“m“), date(“d“), date(“Y“)+1);