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);