Use cookies to count visitor login times_PHP tutorial

Copy code The code is as follows:

$_COOKIE["counter"]?($c=$_COOKIE ["counter"]+1):($c=1);
setCookie("counter",$c,time()+60);
echo "Welcome to your "." ".$c."Visit cookies";
?>

In this application, first The browser requests a resource (this php page) and sends the following HTTP header content to the server:
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

------------------------------------------------ --------------------------------
Now the dynamic web page program (index.php) has created the cookie, then , the server will transmit the following HTTP header content to the browser:
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:private

GET http://localhost/index.php HTTP/1.1
----- -------------------------------------------------- --------------------

This will save a cookie file on the client side and save the $c variable
When requested again, it will The data in the cookie will be passed to the server, such as the following HTTP request header:

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

http://www.bkjia.com/PHPjc/327476.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/327476.htmlTechArticleCopy the code as follows: ?php $_COOKIE["counter"]?($c=$_COOKIE["counter "]+1):($c=1); setCookie("counter",$c,time()+60); echo "bWelcome"."font color=#ff0000".$c."/ font visits...