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HomeBackend DevelopmentPHP Tutorial[原创]最简单的文本计数器--(好象也不简单,呵呵夸大了~)_PHP

计数器

$file="count.dat";
if(@file_exists($file)){
    $fp=@file($file);
    $num=$fp[0];
    $f=fopen($file,"w+");
    $number=$num+1;
    fputs($f,$number);
}else{
    $f=fopen($file,"a+");
    fputs($fp,"0");
}
@fclose($f);
?>
您好=$_SERVER["REMOTE_ADDR"]?>,您是本站的第[=$number?>]位客人

封装为
class Counter{
   function addnumber(){
//多用户   function addnumber($user){    //提示:您可以使用ID来进行多用户(多页面)计数例如:$c=new Counter;$c->addnumber($id);
    $file="count.dat";
//多用户(页面)    $file=$user.".dat";
        if(@file_exists($file)){
            $fp=@file($file);
            $num=$fp[0];
            $f=fopen($file,"w+");
            $number=$num+1;
            fputs($f,$number);
        }else{
            $f=fopen($file,"a+");
            fputs($fp,"0");
        }
        @fclose($f);
print("您好$_SERVER["REMOTE_ADDR"],您是本站的第[$number]位客人");
   }
}

调用
eg.php

$co=new Conter;
$co->addnumber();    //单用户计数
$co->addnumber($id);    //多用户(页面)计数,这里的ID可以为您数据库内符合记录的用户ID,也可以为你剥除了目录的PHP_SELF,呵呵,单独放个counter目录,里面每个页面(用户)都有他自己同样名称的.dat文件来记录他的
页面的访问量~,简单的也可以做不简单的事情哦~
?>


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