PHP 日，周，月点击排行统计

$now=time(); //当前时间
$strupdate = "update $tbl_article set hits=hits+1";
if(date("d",$lasthittime)==date("d",$now)){//同一天
$strupdate = $strupdate.",dayhits = dayhits+1";
}else{
$strupdate = $strupdate.",dayhits = 0";
}
if(date("w",$lasthittime)==date("w",$now)){//同一周
$strupdate = $strupdate.",weekhits = weekhits+1";
}else{
$strupdate = $strupdate.",weekhits = 0";
}
if(date("m",$lasthittime)==date("m",$now)){//同一月
$strupdate = $strupdate.",monthhits = monthhits+1";
}else{
$strupdate = $strupdate.",monthhits = 0";
}
$strupdate = $strupdate.",lasthittime='$now' where id='$id'"; //更新点击时间
$fsql->query($strupdate);