<div class="codetitle"><a style="CURSOR: pointer" data="11169" class="copybut" id="copybut11169" onclick="doCopy('code11169')"> 代码如下:<div class="codebody" id="code11169"> <?php $_COOKIE["counter"]?($c=$_COOKIE["counter"]+1):($c=1); setCookie("counter",$c,time()+60); echo "欢迎您第"."".$c."次访问cookie"; ?>
在这个应用程序中,首先是浏览器请求一个资源(这个php页面),发送下面的HTTP包头内容到服务器: GET http://localhost/index.php HTTP/1.1 HOST:localhost Accept:/ Accept-language:zh-cn Accept-Encoding:gzip,deflate User-Agent:Mozilla/4.0 (compatible;MSIE 6.0;Windows NT 5.1;SV1) Connection:Keep-Alive--------------------------------------------------------------------------- 现在是动态网页程序(index.php)创建了Cookie,那么,服务器会传输下面的HTTP报头内容到浏览器: HTTP/1.1 200 OK Server:Apache/2.2.6 (Win32) PHP/5.2.6 Date:Fri,23 Mar 2009 23:15:55 GMT Connection:Keep-Alive Content-Length:65 Content-Typt:text/html Set-Cookie:VisitorCount=1; expires=Thr,30-Jul-2010 16:00:00 GMT;domain=localhost;path=/ Cache-control:privateGET http://localhost/index.php HTTP/1.1 ---------------------------------------------------------------------------这将在客户端保存一个cookie文件,并保存$c变量 当再次请求时,就会将cookie中的数据传给服务器,例如下边的HTTP请求报头:Accept:/ Accept-language:zh-cn Pragma:no-cache User-Agent:Mozilla/4.0(compatible;MSIE 6.0;Windows NT 5.1; SV1) Host:localhost Connection:Keep-Alive Cookie:VisitorCount=1
(编辑:李大同)
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