PHP个人网站架设连环讲(一)
这里和大家交流一下架设个人网站的经验。不妥之处,敬请指正!
一 编辑调试环境
win98本地编辑调试,爽不爽?先下一个Omnihttpd Proffesinal V2.06 ,装上就有PHP4beta3可以用了。如果你较懂HTML,推荐用EditPlus,相当好哦!否则只好用DreamWeaver先了。还要连数据库?幸好MySQL还有For WIN32的版本。
二 先来一个计数器
自己的计数器总比外来的好,敝帚自珍嘛!时下介绍的计数器源代码总是那种刷新一下就长,不免有些自欺欺人,呵呵。不过我们还是先分析一下它的工作原理吧,下面是一个简单计数器的示例:
{ $fp=fopen($countfile,"r+");
$count=fgets($fp,5); $count+=1; rewind($fp);
fputs($fp,$count,5);
fclose($fp);
}
else
{
$fp=fopen($countfile,"w");
$count="1";
fputs($fp,$count,5);
fclose($fp);
};
?>
这个计数器有个外号,叫一刷就长^_^。那么,怎么才能使计数器更真实一点呢?PHP4给我们带来一个简单的方法,就是使用SESSION(会话)级变量。一进页面,先检验SESSION中COUNT是否存在并等于你想要的值,不等于则使等于先,然后调用计数过程,会话结束后,就可以对COUNT说:ByeBye了您呐!
但是如果不是PHP4又该怎么办?不知道你还记得cookie否?我们可以假设某人在15分钟以内(或别的时间段内)对你的网页的请求都不属于一个新的人次,这样你可以做个计数的过程存在INC里,在每一个页面引用,访客第一次进入时将访问时间送到cookie里。以后每个页面被访问时都检查cookie上次访问时间值。比较一下,若差别大于十五分钟则计数,否则将时间刷新。(你不会连cookie怎么用都不知道吧?呵呵,推荐一本书《PHP核心编程》,清华版的,查函数还够用,每个函数都有使用示例:-D)
不过,刚才的计数器毫无美观可言,估计你是肯定不满意了,换个图形的吧。做一套0.jpg,1.jpg……9.jpg。刚才不是读入一个字串吗?先查查串长,输入你期望的长度(如5)减去串长(去掉空格后的)个零,然后从头一个一个截数字(其实还是字符),与“.jpg”组合后输出,图形计数器不就出来了吗?
好了,一个个人用的计数器就已经比较完美了.
to be continued ...

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