<?  //require ("common.inc");  $arr_request=array();  if (count($HTTP_GET_VARS))      {      while (list($key,$value)=each($HTTP_GET_VARS))      {          $arr_request[strtolower($key)]=$value;      }  }  if (count($HTTP_POST_VARS))  {      WHILE (list($key,$value)=each($HTTP_POST_VARS))      {          $arr_request[strtolower($key)]=$value;      }  }  $link=@mysql_connect("localhost","kong","kong");  mysql_select_db("mywebdb"); $ip=$REMOTE_ADDR;  $current=getdate(time());  $day=$current["mday"];  $query="select * from addcount where day="$day""; $result=@mysql_query($query); if(!$num=@mysql_num_rows($result))     $num=1; while($row=@mysql_fetch_row($result)) {      if (strcmp($ip,$row[1])==0)      {          $i=1;         $id=$row[0];         $click=$row[3]+1;         $up="update addcount set click_count=click_count+1 where id=$id";          $result2=@mysql_query($up); //        break;     }      $total+=$row[3]; }  $total++; if(!$i){     $query1="insert into addcount (ip,day,click_count )values ("$ip","$day",1)";      mysql_db_query("mywebdb",$query1,$link);      $click=1; } echo "<html><head><title>计数器</title></head>";     echo "你是第" .$num."访问者<BR>";     echo "今天你第".$click."次点击<BR>";     echo "今天总点击".$total."次<BR>"; /* 表:  addcount  CREATE TABLE addcount (    id int(6) DEFAULT "0" NOT NULL auto_increment,    ip char(20) NOT NULL,    day int(2) NOT NULL,    click_count int(3) NOT NULL,    PRIMARY KEY (id) ); */ ?>