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HomeBackend DevelopmentPHP Tutorial打造计数器DIY三步曲(下)_php基础

中篇我向您介绍了怎样在自己的镜像站上放置OSO上的计数器,本篇我将向您介绍如何打造自己的免费计数器系统的构思,程序还得您自己写哟.
    好多网站都提供了免费计数器服务,很久以前我就有个梦想,建立自己的免费计数器系统,而现在OSO提供了数据库,这一切将成为现实.
    多数网站都是只向会员提供免费计数器的,我们也可以这样做,好让自己的网站也有上一些臣民,在他们注册的时候,可以自动生成一个ID,我们的计数器系统就全靠这个ID了!
    当用户申请计数器时,首先当然是检查用户名和密码了,登陆成功后,从数据库中调出用户的ID出来,用户申请后系统自动创建两个文件countid.php和showid.php,简单流程可以如下:
    $filea="count".$id."php";
    $fileb="show".$id."php";
    $fpa=fopen("count/$filea",w);
    $fpb=fopen("show/$fileb",w)
    然后写入文件,内容和中篇中的大同小异,只用将num改一下即可,简单流程可以如下:
    fputs($fpa,$count,strlen($count));
    fputs($fpb,$show,strlen($show));
    $count=countid.php中的内容;
    $show=showid.php中的内容;
    这样就产生了countid.php和showid.php两个文件,同时让数据库insert num=id就可以了,最后返回一段代码,让用户知道怎样使用这个计数器,一切搞定!
    不过我觉得申请计数器时可以让用户设置初值,数据库插入num时用replace来代替insert,这样用户如果忘了代码,随时可以重新申请一个,并设置好初值,而计数器会把原来的记录覆盖掉,这就没有必要让用户牢记代码,或者提供代码返回,这样太麻烦了!
    怎么样?一切都很轻松吧,希望您能通过此三篇文章顺利地打造出自己的计数器系统,在此我预祝您能成功! 

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