Question

我正在尝试设置密码保护以用于某些文件。我已经按照在线教程进行了操作，并取得了一些成功，但在其他情况下，不断接到拒绝访问的页面的呼叫，尽管看起来正在执行的操作完全相同。

从我的登录页面，登录脚本调用一个php登录页面，该页面应该存储会话ID。然后，我有一个单独的页面，检查是否已存储会话ID，并且该页面（称为auth.php）包含在我试图保护的页面中。我把PHP代码放在文件的最开头，正如我所说的一些测试页面它可以工作，但对于我需要它的页面，它会恢复到访问被拒绝的页面，这对我来说意味着它没有认识到会话ID已存储。我没有收到任何与连接问题有关的错误消息，所以我的重点是会话ID问题。任何想法都将不胜感激。

包含代码：

<?php
require_once('auth.php');
?>

auth.php代码：

<?php
//Check whether the session variable SESS_MEMBER_ID is present or not
if(!isset($_SESSION['SESS_MEMBER_ID']) || (trim($_SESSION['SESS_MEMBER_ID']) == '')) {
    header("location: access-denied.php");
    exit();
}
  ?>

登录脚本代码的相关部分：

//Create query
$qry="SELECT * FROM members WHERE login='$login' AND password='".md5($_POST['password'])."'";
$result=mysql_query($qry);

//Check whether the query was successful or not
if($result) {
    if(mysql_num_rows($result) == 1) {
        //Login Successful
        session_regenerate_id();
        $member = mysql_fetch_assoc($result);
        $_SESSION['SESS_MEMBER_ID'] = $member['member_id'];
        $_SESSION['SESS_FIRST_NAME'] = $member['firstname'];
        $_SESSION['SESS_LAST_NAME'] = $member['lastname'];
        session_write_close();
        header("location: member-index.php");
        exit();
    }else {
        //Login failed
        header("location: login-failed.php");
        exit();
    }
}else {
    die("Query failed");
}

完整登录代码：

<?php
//Start session
session_start();

//Include database connection details
require_once('config.php');

//Array to store validation errors
$errmsg_arr = array();

//Validation error flag
$errflag = false;


//Function to sanitize values received from the form. Prevents SQL injection
function clean($str) {
    $str = @trim($str);
    if(get_magic_quotes_gpc()) {
        $str = stripslashes($str);
    }
    return mysql_real_escape_string($str);
}

//Sanitize the POST values
$login = clean($_POST['login']);
$password = clean($_POST['password']);

//Input Validations
if($login == '') {
    $errmsg_arr[] = 'Login ID missing';
    $errflag = true;
}
if($password == '') {
    $errmsg_arr[] = 'Password missing';
    $errflag = true;
}

//If there are input validations, redirect back to the login form
if($errflag) {
    $_SESSION['ERRMSG_ARR'] = $errmsg_arr;
    session_write_close();
    header("location: login-form.php");
    exit();
}

//Create query
$qry="SELECT * FROM members WHERE login='$login' AND password='".md5($_POST['password'])."'";
$result=mysql_query($qry);

//Check whether the query was successful or not
if($result) {
    if(mysql_num_rows($result) == 1) {
        //Login Successful
        session_regenerate_id();
        $member = mysql_fetch_assoc($result);
        $_SESSION['SESS_MEMBER_ID'] = $member['member_id'];
        $_SESSION['SESS_FIRST_NAME'] = $member['firstname'];
        $_SESSION['SESS_LAST_NAME'] = $member['lastname'];
        session_write_close();
        header("location: member-index.php");
        exit();
    }else {
        //Login failed
        header("location: login-failed.php");
        exit();
    }
}else {
    die("Query failed");
}

＆GT;

Answer 1

我没有看到任何session_start()你需要它（参见the manual）在使用会话的任何php文件的开头......

某些文件的密码保护访问被拒绝

1 个答案: