【发布时间】：2016-12-21 14:03:48
【问题描述】：
请帮我解决这个问题。我只想在激活会话时访问页面的内容，否则重定向用户首先激活会话。但是当我将用户重定向到会话页面时，它被卡住并且无法返回到内容页面。我是新来的，所以请帮我解决这个问题。
<?php
session_start();
if(!isset($_SESSION['username'])){
echo "cookie is not activated" ;
header('Location: http://localhost/CC/Loginsession.php');
die;
}
else {
?>
<!doctype html>
<html>
<head>
<title>Update in PHP</title>
</head>
<body>
<?php
$servername="localhost";
$username="root";
$password="";
$conn=mysql_connect($servername,$username,$password);
if(!$conn ) {
die('Could not connect: ' . mysql_error());
}
$sq1 = 'select * from biodata';
mysql_select_db('firstdb');
$display=mysql_query($sq1,$conn);
if(!$display ) {
die('Could not get data: ' . mysql_error());
exit;
}
if (mysql_num_rows($display) == 0) {
echo "No rows found, nothing to print so am exiting";
exit;
}
?>
<table border="2" style= "background-color: #84ed86; color: #761a9b; margin: 0 auto;" >
<thead>
<tr>
<th>ID</th>
<th>Fname</th>
<th>Lname</th>
<th>Email</th>
<th>Phone</th>
<th>Message</th>
<th>Update</th>
</tr>
</thead>
<tbody>
<?php
while( $row = mysql_fetch_assoc( $display ) ){
echo
"<form method= 'post' />
<tr>
<td ><input name='UID' value='{$row['ID']}' readonly/></td>
<td ><input name='upfname' value='{$row['fname']}' /></td>
<td ><input name='uplname' value='{$row['lname']}' /></td>
<td ><input name='upemail' value='{$row['email']}' /></td>
<td ><input name='upphone' value='{$row['phone']}' /></td>
<td ><input name='upmessage' value='{$row['message']}' /></td>
<td><input type='Submit' name='update' value='Update' id='".$row["ID"]."' </td>
</tr>
</form>";
}
?>
</tbody>
</table>
<?php
if(isset($_REQUEST['update']))
{
$id = $_REQUEST['UID'];
$upfn = $_REQUEST['upfname'];
$upln = $_REQUEST['uplname'];
$upem = $_REQUEST['upemail'];
$upph = $_REQUEST['upphone'];
$upms = $_REQUEST['upmessage'];
$up="UPDATE biodata
SET
fname='$upfn',
lname='$upln',
email='$upem',
phone='$upph',
message='$upms'
WHERE ID = $id";
$updbb=mysql_query($up,$conn);
if($updbb){
header('Location: http://localhost/Prac/updateinsamepage.php');
}
}
}
?>
</body>
</html>>我的会话登录表单代码在这里
<?php
session_start();
if(isset($_SESSION['username'])){
echo "Already registered as $_SESSION[username]" ;
}
else if($_SERVER['REQUEST_METHOD'] == 'POST'){
$uname=htmlentities($_POST['username']);
$pass=htmlentities($_POST['password']);
if(!empty($uname) && !empty($pass)) {
$_SESSION['username']=$uname;
echo "Thanks<br />" . "UserName: $uname " . "Password: $pass";
}
else{
echo "Please fill out the both fields";
}
}
else {
?>
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Loginsession</title>
</head>
<body>
<form method="post">
Username:<input type="text" id="username" name="username" /> <br /><br />
Password:<input type="password" id="password" name="password"/><br /><br />
<input type="hidden" name="hiddenvalue" value="<?php http://localhost/CC/Loginsession.php?username=overwritten ?>"/>
<input type="Submit" value="Login" name="Submit" id="submit" />
</form>
<?php }?>
<?php
session_unset();
session_destroy();
?>
</body>
</html>【问题讨论】：
-
检查您的 PHP 日志。您的会话登录页面至少有一个明显的语法错误。您在服务器端代码中输入了一个随机 URL，在
input元素内。 -
@David (program):5 Uncaught TypeError: Cannot read property 'removeAttribute' of nullprotectStyleSheet @ include.preload.js:393 先生这是什么意思？
-
如果您已经发送了内容（例如通过
echo），则不能使用header -
@apokrypos Bro 那是正确重定向我的问题在其他地方
-
可能是因为你在php之前发送了输出
header