一个简单的php计数器

作者:admin 日期:2006-07-29

字体大小: 小中大

代码如下：
<?php
$ip = getenv("REMOTE_ADDR");    //IP

$count_file = "count.txt";        //文件
$max = 6;                                            //位数
$count = 60;                                        //次数

function formats(&$count)            //方便存储，先格式化成20位字符串
{
    $count = sprintf("%d",$count);
    $j = 20-strlen($count);
    for($i=0; $i<$j; $i++)
    {
        $count = "0".$count;
    }
}

function ipdata(&$fp, &$ip)        //ip是否已记录
{
    $k = 1;                                            //为1则还没有，为0则已访问
    while(!feof($fp))
    {
        if($ip == Chop(fgets($fp,255)))
        {
            $k = 0;
            break;
        }
    }
    return $k;
}

function time_yes(&$count, &$ip)        //记录的时间是今天
{
    global $count_file;
    $count += 1;
    formats($count);
    $fp = fopen($count_file, "a+");
    fputs($fp, "\r\n".$ip);
    fclose($fp);
    $fp = fopen($count_file, "r+");
    fputs($fp, $count);
    fclose($fp);
}

function time_no(&$count, &$ip)        //记录的时间不是今天
{
    global $count_file;
    $count += 1;
    formats($count);
    $fp = fopen($count_file, "w");
    fputs($fp, $count);
    fputs($fp, "\r\n".date(Ymd));
    fputs($fp, "\r\n".$ip);
    fclose($fp);
}

if(!file_exists($count_file))
{
    time_no($count, $ip);
}
else
{
    $fp = fopen($count_file, "r");
    $count = fgets($fp, 255);
    $to_time = fgets($fp, 255);
    $k = ipdata($fp, $ip);
    fclose($fp);
    if(Chop($to_time) != date("Ymd"))
        time_no($count, $ip);
    elseif($k == 1)
        time_yes($count, $ip);
}

$fp = fopen($count_file, "r");
$counts = fgets($fp, 255);
fclose($fp);

for($i=1; $i<=$max; $i++)
{
    $num = substr($counts, $i+(19-$max), 1);
    $image = "<img src=\"images/$num.gif\">";
    $show = $show.$image;
}

print $show;

?>