用法
include(counter.php);
counter(__file__);//为文件增加一个计数
if($php_self==/index.php)
{
$count=counter(index_count);//为首页增加一个计数
}
else
{
$count=counter(index_count,,0);//取得首页计数
}
echo 你是第$count个访问者;
?>
--------counter.php-----------
if(!isset($php_include_counter_php))
{$php_include_counter_php=__file;
$counter_error_state=0;
$counter_error_msg=;
function counter($file,$query=,$add=1)
{
        $db_name=database;
        $db_user=username;
        $db_pass=password;
        $db_table=counter;
if(empty($file))
        {
                $counter_error_state=-100;
                $counter_error_msg=缺少第一个参数或参数为空;
                return -100;
        }
        global $php_self,$query_string,$counter_error_state,$counter_error_msg;
        if(empty($db_user)||!$db_user||$db_user==)$res=@mysql_connect(localhost);
        else $res=@mysql_connect(localhost,$db_user,$db_pass);
        if(!$res)
        {
                $counter_error_states=-10;
                $counter_error_msg=不能连接数据库;
                return -10;
        }
        if(!@mysql_select_db($db_name))
        {
                $counter_error_states=-11;
                $counter_error_msg=不能选择数据库;
                return -11;
        }
        else
        {
                if(!$db_res=@mysql_query(select * from .$db_table))
                {
                        if(!$db_res=@mysql_query(create table .$db_table. (id integer auto_increment,primary key (id),file varchar(255),query varchar(255),time varchar(255),count int)))
                        {
                                $counter_error_states=-20;
                                $counter_error_msg=不能创建数据表;
                                return -20;
                        }
                        @mysql_free_result($db_res);
                }
                $str=select * from .$db_table. where file=\.$file.\ and query=\.$query.\;
if(!$db_res=@mysql_query($str))
                {
                        $counter_error_states=-30;
                        $counter_error_msg=不能查询记录;
                        return -30;
                }
                $num=@mysql_num_rows($db_res);
                if($num>1)
                {
                        $counter_error_states=-40;
                        $counter_error_msg=发生没有预期的错误=数据行数错误;
                        return -40;
                }
                $count=0;
                $str=insert ;
                $strwhere=;
                if($num==1)
                {
                        $row=@mysql_fetch_array($db_res);
                        @mysql_free_result($db_res);
                        $count=$row[count];
                        $id=$row[id];
                        $str=update ;
                        $strwhere= where id=$id;
                }
                if($add                $count+=$add;
                $str.=$db_table. set file=\.$file.\,query=\.$query.\,time=\.date(y;n;d;g;i;s).\,count=.$count.$strwhere;
                $db_res=@mysql_query($str);
                if(!$db_res)
                {
                        $counter_error_states=-50;
                        $counter_error_msg=不能添加或更新记录;
                        return -50;
                }
                return $count;
        }
}
}
?>
http://www.bkjia.com/phpjc/315451.htmlwww.bkjia.comtruehttp://www.bkjia.com/phpjc/315451.htmltecharticle用法 ? include(counter.php); counter(__file__);//为文件增加一个计数 if($php_self==/index.php) { $count=counter(index_count);//为首页增加一个计数 } else { $count=...