需要mysql，gd的支持，linux下php4rc1通过，这也是我做的系统中正在用的。
<?php
/***
hit_count表只一个字段hit_count
page_visit_record表是用来控制一个ip一天内只产生一个计数器跳动
create table page_visit_record (
visit_time datetime default '0000-00-00 00:00:00' not null,
remote_addr char(15) not null,
visit_page char(60) not null,
key visit_time (visit_time, visit_page),
primary key (visit_time)
);
***/
include("config.inc.php3");
$query="select count(*) as tong from page_visit_record where remote_addr='$remote_addr' and date_format(visit_time,'%y-%m-%d')=curdate()";
$result=@mysql_query($query,$dbconnect);
$has_count=@mysql_result($result,0,"tong");
@mysql_query("lock tables hit_count write",$dbconnect);
$query="select * from hit_count";
$result=@mysql_query($query,$dbconnect);
if(@mysql_num_rows($result)>0){
$cur_count=@mysql_result($result,0,"hit_count");
if($has_count==0){
$cur_count++;
$query="update hit_count set hit_count='$cur_count'";
@mysql_query($query,$dbconnect);
}
@mysql_query("unlock tables",$dbconnect);
}
else{
$cur_count=1;
$query="insert into hit_count (hit_count) values ('$cur_count')";
@mysql_query($query,$dbconnect);
@mysql_query("unlock tables",$dbconnect);
}
while(strlen($cur_count)<8)
$cur_count="0$cur_count";
$visit_time=date("y-m-d h:i:s");
$query="insert into page_visit_record (visit_time,remote_addr,visit_page) values ('$visit_time','$remote_addr','$page')";
@mysql_query($query,$dbconnect);
header("content-type: image/gif");
$im = imagecreate(56,16);
$black = imagecolorallocate($im, 0,0,0);
$blue = imagecolorallocate($im, 0,0,255);
$white = imagecolorallocate($im, 255,255,255);
$yellow = imagecolorallocate($im, 255,255,0);
imagerectangle($im, 0, 0, 54, 14, $blue);
//imagestring($im, 2, 4, 1, $cur_count, $yellow);
imagestring($im, 2, 4, 1, $cur_count, $yellow);
imagegif($im);
imagedestroy($im);
?>
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