学步园

//得到系统的年月
$tmp_date=date("Ym");
//切割出年份
$tmp_year=substr($tmp_date,0,4);
//切割出月份
$tmp_mon =substr($tmp_date,4,2);
$tmp_nextmonth=mktime(0,0,0,$tmp_mon+1,1,$tmp_year);
$tmp_forwardmonth=mktime(0,0,0,$tmp_mon-1,1,$tmp_year);
//得到当前月的下一个月 
$fm_next_month=date("Ym",$tmp_nextmonth);
//得到当前月的上一个月 
$fm_forward_month=date("Ym",$tmp_forwardmonth);