Question

我是php的新手，也是本网站的新手。

我已经制作了登录代码。当人们登录，然后单击其他链接时，他们将被注销。此外，有时当人们登录时，它会显示其他人的姓名。但是，清除缓存并清理浏览器的历史记录，一切都很好。有什么问题会导致这种情况？

<?php
ob_start();
ob_start('gz_handler');
session_start();


require_once("loginconfig.php");


if (isset($_POST['username']) && strlen($_POST['username']) >= 3 && isset($_POST['password']) && strlen($_POST['password']) >= 3)
{

$connect = mysql_connect($host, $user, $pass);

mysql_select_db($database, $connect);


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

$usernameTest = htmlentities($usernameTest, ENT_QUOTES);
$passwordTest = htmlentities($passwordTest, ENT_QUOTES);

//$passwordTest = md5($passwordTest);

$query = mysql_query("SELECT $username, $password, $name, $accessLevel FROM $table WHERE $username='$usernameTest' AND $password='$passwordTest'", $connect);

$affectedRows = mysql_num_rows($query);

if($affectedRows === 1)
{
    $rows = mysql_fetch_array($query);

    $_SESSION['username'] = $rows[$username];
    $_SESSION['name'] = $rows[$name];
    $_SESSION['accessLevel'] = $rows[$accessLevel];
    $_SESSION['auth'] = strlen($rows[$username].$rows[$password]);

    $query = mysql_query("UPDATE $table SET LastLogin=NOW() WHERE $username='$usernameTest' AND $password='$passwordTest'", $connect);

    mysql_close($connect);

    header("Location: $loggedIn");
    ob_flush();
}
else
{
    header("Location: $homePage?e=2");
    ob_flush();
}

}
else
{
header("Location: $homePage?e=1");
ob_flush();
}


?>

Php登录问题。与浏览器缓存有关吗？

0 个答案: