这是网上下的代码:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>银子留言板 Version 1.0</title>
</head>
<link href="css.css" rel="stylesheet" type="text/css" />
<body>
<div id="head">
<div id="head_l">
<ul>
<li><a href="index.php">偶要看留言</a></li>
<li><a href="post.php">偶要发表</a></li>
<?php
session_start();
if($_SESSION["key"]==1){//如果获取的SESSION为1则显示管理项
?>
<li><a href="adminexit.php">退出管理</a></li>
<?
}
else
{
?>
<li><a href="admin.php">偶要管理</a></li>
<?}?>
</ul>
</div>
<div id="head_r">银子留言板 Version 1.0</div>
</div>
运行时报错:Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at E:\apache\Apache2\sites\header.php:11) in E:\apache\Apache2\sites\header.php on line 15Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at E:\apache\Apache2\sites\header.php:11) in E:\apache\Apache2\sites\header.php on line 15谢谢各位了!
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>银子留言板 Version 1.0</title>
</head>
<link href="css.css" rel="stylesheet" type="text/css" />
<body>
<div id="head">
<div id="head_l">
<ul>
<li><a href="index.php">偶要看留言</a></li>
<li><a href="post.php">偶要发表</a></li>
<?php
session_start();
if($_SESSION["key"]==1){//如果获取的SESSION为1则显示管理项
?>
<li><a href="adminexit.php">退出管理</a></li>
<?
}
else
{
?>
<li><a href="admin.php">偶要管理</a></li>
<?}?>
</ul>
</div>
<div id="head_r">银子留言板 Version 1.0</div>
</div>
运行时报错:Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at E:\apache\Apache2\sites\header.php:11) in E:\apache\Apache2\sites\header.php on line 15Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at E:\apache\Apache2\sites\header.php:11) in E:\apache\Apache2\sites\header.php on line 15谢谢各位了!
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>银子留言板 Version 1.0 </title>
</head>
<link href="css.css" rel="stylesheet" type="text/css" />
<body>
<div id="head">
<div id="head_l">
<ul>
<li> <a href="index.php">偶要看留言 </a> </li>
<li> <a href="post.php">偶要发表 </a> </li>
<?
if($_SESSION["key"]==1){//如果获取的SESSION为1则显示管理项
?>
<li> <a href="adminexit.php">退出管理 </a> </li>
<?
}
else
{
?>
<li> <a href="admin.php">偶要管理 </a> </li>
<?}?>
</ul>
</div>
<div id="head_r">银子留言板 Version 1.0 </div>
</div>
这是网上下的代码:
<?php session_start(); ?>
!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>银子留言板 Version 1.0 </title>
</head>
<link href="css.css" rel="stylesheet" type="text/css" />
<body>
<div id="head">
<div id="head_l">
<ul>
<li> <a href="index.php">偶要看留言 </a> </li>
<li> <a href="post.php">偶要发表 </a> </li>
<?php
if($_SESSION["key"]==1){//如果获取的SESSION为1则显示管理项
?>
<li> <a href="adminexit.php">退出管理 </a> </li>
<?
}
else
{
?>
<li> <a href="admin.php">偶要管理 </a> </li>
<?}?>
</ul>
</div>
<div id="head_r">银子留言板 Version 1.0 </div>
</div>