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我在其他系統中編寫了一個用於登錄php/html的腳本。它與該系統運作良好。現在我將文件導入到另一個系統中。現在，無論何時我打開admin.php腳本，它都會將用戶名分別作爲用戶名和密碼字段中的用戶名和密碼。我無法修復它。php表單的輸入字段顯示數據庫的用戶名和密碼
php腳本：
<?php
session_start();
$error_msg = "";
// If the admin isn't logged in, try to log them in
if (!isset($_SESSION['a_id'])) {
if (isset($_POST['submit'])) {
// Connect to the database
require_once('connectvars.php');
$dbc = mysqli_connect(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME);
// Grab the user-entered log-in data
$user_username = mysqli_real_escape_string($dbc, trim($_POST['username']));
$user_password = mysqli_real_escape_string($dbc, trim($_POST['password']));
if (!empty($user_username) && !empty($user_password)) {
// Look up the username and password in the database
$query = "SELECT a_id, a_name FROM admin WHERE a_name = '$user_username' AND a_password = '$user_password'";
$data = mysqli_query($dbc, $query);
if (mysqli_num_rows($data) == 1) {
// The log-in is OK so set the user ID and username session vars (and cookies), and redirect to the home page
$row = mysqli_fetch_array($data);
$_SESSION['a_id'] = $row['a_id'];
$_SESSION['a_name'] = $row['a_name'];
setcookie('a_id', $row['a_id'], time() + (60 * 60 * 24 * 30)); // expires in 30 days
setcookie('a_name', $row['a_name'], time() + (60 * 60 * 24 * 30)); // expires in 30 days
// $home_url = 'http://' . $_SERVER['HTTP_HOST'] . dirname($_SERVER['PHP_SELF']) . '/index.php';
// header('Location: ' . $home_url);
}
else {
// The username/password are incorrect so set an error message
$error_msg = 'Sorry, you must enter a valid username and password to log in.';
}
}
else {
// The username/password weren't entered so set an error message
$error_msg = 'Sorry, you must enter your username and password to log in.';
}
}
echo "You need to log in.";
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title> Log In Admin</title>
<style>
label
{
display: inline-block;
width: 140px;
}
</style>
<link rel="stylesheet" type="text/css" href="style.css" />
</head>
<body>
<h3> Log In Admin</h3>
<?php
// If the session var is empty, show any error message and the log-in form; otherwise confirm the log-in
if (empty($_SESSION['a_id'])) {
echo '<p class="error">' . $error_msg . '</p>';
?>
<form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
<fieldset>
<legend>Log In</legend>
<label for="username">Admin Name:</label>
<input type="text" name="username" value="<?php if (!empty($user_username)) echo $user_username; ?>" /><br />
<label for="password">Password:</label>
<input type="password" name="password" />
</fieldset>
<input type="submit" value="Log In" name="submit" />
</form>
<p> It is log in page for admin. If you are user and want to log in , click <a href="login.php"> here </a> </p>
<?php
}
else {
// Confirm the successful log-in
echo'You are logged in as ' . $_SESSION['a_name'] ;
?>
</body>
</html>
<html>
<head>
<title>
Admin Page
</title>
</head>
<body>
<h5> What do you want </h5>
<a href="question_records.php"> Manage Questions</a><br>
<a href="user_records.php"> Manage Users </a><br>
<a href="logout_admin.php"> Log Out </a>
</body>
</html>
<?php
}
?>
我使用的XAMPP服務器。
的頁面是這樣的：
密碼是自動填入的，是這個問題嗎？ – 2014-09-04 15:25:47
@ Fred-ii-兩人都沒有人在工作 – jahan 2014-09-04 15:28:04
@DaveChen是的也是管理員的名字.. – jahan 2014-09-04 15:28:52