s1.php<?
session_start();
$_SESSION['var1']="中华人民共和国";$url="<a href=s2.php>下一页</a>";
echo $url;
?>s2.php
<?
session_start();
echo "传递的session变量var1的值为:".$_SESSION['var1'];
?>
session_start();
$_SESSION['var1']="中华人民共和国";$url="<a href=s2.php>下一页</a>";
echo $url;
?>s2.php
<?
session_start();
echo "传递的session变量var1的值为:".$_SESSION['var1'];
?>
echo "传递的session变量var1的值为:".$_SESSION['var1'];如果这里都没有显示,则说明是你的配置有问题。
next page
Warning: Unknown(): The session id contains invalid characters, valid characters are only a-z, A-Z and 0-9 in Unknown on line 0Warning: Unknown(): Failed to write session data (files). Please verify that the current setting of session.save_path is correct (\wampp2\tmp) in Unknown on line 0
为什么会出现这些警告啊?
<?
session_id($_GET['s']);
session_start();
echo "传递的session变量var1的值为:".$_SESSION['var1'];?>
第一行,第二行互换