set.php:
<?php
$value=123456
setcookie ("name", $value);
?>
fetchcookie.php
<?php
echo $_COOKIE[name];//输入为123456
?>
<?php
$value=123456
setcookie ("name", $value);
?>
fetchcookie.php
<?php
echo $_COOKIE[name];//输入为123456
?>
<?php
$value=123456
setcookie ("name", $value);
?>
fetchcookie.php
<?php
echo $_COOKIE[name];//输入为123456
?>
运行时,两个程序要在同一个浏览器窗口打开