Question

我遇到问题是我在主页面上然后登录然后我转到另一个页面而我再也看不到存储的会话了，但是当我点击登录时它说我已经登录了。但是如果我去了一个不同的目录，比如/ admin /会话数据仍在那里。任何解决方案？

的login.php

<?php 
session_start(); 
require_once('connections/Main.php');

if($_SESSION['username']) {

    echo '<div class="error_message">Attention! '.$_SESSION['username'].'. You  are already logged in.</div>';
    echo "<br />";
    echo "Go <a target='top' href='index.php'>back</a> to the page you were viewing before this.</li>";

    exit();
}

// Has an error message been passed to login.php?
$error = $_GET['e'];

if($error == 1) {
    $error = '<div class="error_message">Attention! You must be logged in to view this page.</div>';
}

// Only process if the login form has been submitted.

if(isset($_POST['login'])) {

    $username = $_POST['username']; 
    $password = $_POST['password']; 

        if (empty($username) || empty($password)) { 
        $error = '<div class="error_message">Attention! Please enter your Username and Password.</div>';
    } else { 

     mysql_select_db($database_Main);
    // Add slashes to the username and md5() the password 
    $user = mysql_real_escape_string(addslashes($_POST['username'])); 
    $pass = mysql_real_escape_string(md5($_POST['password'])); 


    $sql = "SELECT * FROM  users WHERE username = '$user' AND password= '$pass' OR email = '$user' AND password= '$pass' "; 

    $result = mysql_query($sql);

    // Check that at least one row was returned 
    $rowCheck = mysql_num_rows($result); 

    if($rowCheck > 0) { 
    while($row = mysql_fetch_array($result)) { 

      // Start the session and register a variable 
      if(isset($_POST['remmemberme'])){
          setcookie(kitbusername, $user,  time()+(3600*24*30));
      }
      $_SESSION['username'] = $user;
      //session_register('username'); 

      echo '<script>parent.changeURL("index.php"); </script>';

      } 

      } else { 

      // If nothing is returned by the query, unsuccessful login code goes here... 

      $error = '<div class="error_message">Attention! Incorrect username or password.</div>'; 
      } 
    }
}
echo $error; ?>

每页上的header.php

<div id="loginoutbox">
<?php session_start(); 
  if($_SESSION["username"]) { ?>
<div>
  Hello <?php echo $_SESSION['username']; ?>! | </div>
<a id="register" href="http://www.kdogisthebest.webege.com/admin/" class="button">Dashboard</a> |
<a id="signin" href="#fallr-confirmlike" class="button">Logout</a>      
<?php }else{ ?>
<div style="display: inline-block; font-size: 14px; padding-left: 20px;">Hello Guest!</div>
<a id="register" href="#fallr-register" class="button">Register</a> |
<a id="signin" href="#fallr-signin" class="button">Login</a>
<?php } ?>
</div>

演示---＆gt; http://www.kdogisthebest.webege.com/index.php

用户名= demouser

密码= demouser

Answer 1

在任何输出之前，

<?php session_start();需要。把它放在页面的顶部。

Answer 2

在使用var_dump转储$ _SESSION变量后，我看到在更改页面后，变量显示为NULL。我瞪眼并做了研究，我认为最好得出结论，这是一个php服务器配置，导致它以这种方式行事。

会话数据在页面之间丢失

2 个答案: