重定向不起作用...当我将标题位置更改为.html页面时，我没有错误..重定向，但是当我把.php页面它没有，页面只刷新并清除输入字段
<?php
session_start();
include("connection.php"); //Establishing connection with our database
$error = ""; //Variable for storing our errors.
if(isset($_POST["submit"]))
{
if(empty($_POST["username"]) || empty($_POST["password"]))
{
$error = "Both fields are required.";
}else{
// Define $username and $password
$username=$_POST['username'];
$password=$_POST['password'];
// To protect from MySQL injection
$username = stripslashes($username);
$password = stripslashes($password);
$username = mysqli_real_escape_string($db, $username);
$password = mysqli_real_escape_string($db, $password);
$password = md5($password);
//Check username and password from database
$sql="SELECT uid FROM users WHERE username='$username' and password='$password'";
$result=mysqli_query($db,$sql);
$row=mysqli_fetch_array($result,MYSQLI_ASSOC);
//If username and password exist in our database then create a session.
//Otherwise echo error.
if(mysqli_num_rows($result) == 1) {
$_SESSION['username'] = $login_user; // Initializing Session
header("location: elements.php"); // Redirecting To Other Page
}else {
$error = "Incorrect username or password.";
}
}
}
?>
此处是我的登录表格。
<?php
include('lgn.php'); // Include Login Script
if ((isset($_SESSION['username']) != ''))
{
header('Location: elements.php');
}
?>
<!DOCTYPE html>
<!--[if lt IE 7]> <html class="no-js lt-ie9 lt-ie8 lt-ie7"> <![endif]-->
<!--[if IE 7]> <html class="no-js lt-ie9 lt-ie8"> <![endif]-->
<!--[if IE 8]> <html class="no-js lt-ie9"> <![endif]-->
<!--[if gt IE 8]><!--> <html class="no-js"> <!--<![endif]-->
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>mbbs in russia login</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="description" content="smurtsmedia" />
<meta name="keywords" content="smurts media, photogoraphy" />
<meta name="author" content="smurtsmedia" />
<!--
//////////////////////////////////////////////////////
//////////////////////////////////////////////////////
-->
<!-- Facebook and Twitter integration -->
<meta property="og:title" content=""/>
<meta property="og:image" content=""/>
<meta property="og:url" content=""/>
<meta property="og:site_name" content=""/>
<meta property="og:description" content=""/>
<meta name="twitter:title" content="" />
<meta name="twitter:image" content="" />
<meta name="twitter:url" content="" />
<meta name="twitter:card" content="" />
<!-- Place favicon.ico and apple-touch-icon.png in the root directory -->
<link rel="shortcut icon" href="favicon.ico">
<link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,300' rel='stylesheet' type='text/css'>
<link rel="stylesheet" href="css/bootstrap.min.css">
<link rel="stylesheet" href="css/animate.css">
<link rel="stylesheet" href="css/form.css">
<!-- Modernizr JS -->
<script src="js/modernizr-2.6.2.min.js"></script>
<!-- FOR IE9 below -->
<!--[if lt IE 9]>
<script src="js/respond.min.js"></script>
<![endif]-->
</head>
<body class="style-2">
<div class="container">
<div class="row">
<div class="col-md-12 text-center">
<ul class="menu">
<!--<li><a href="index.html">Style 1</a></li>
<li class="active"><a href="index2.html">Style 2</a></li>
<li><a href="index3.html">Style 3</a></li>-->
</ul>
</div>
</div>
<div class="row">
<div class="col-md-4">
<!-- Start Sign In Form -->
<form method="post" action="" class="fh5co-form animate-box" data-animate-effect="fadeInLeft">
<h2>Sign In</h2>
<div class="form-group">
<label for="username" class="sr-only">Username</label>
<input name="username" type="text" class="form-control" id="username" placeholder="Username" autocomplete="off">
</div>
<div class="form-group">
<label for="password" class="sr-only">Password</label>
<input name="password" type="password" class="form-control" id="password" placeholder="Password" autocomplete="off">
</div>
<div class="form-group">
<label for="remember"><input type="checkbox" id="remember"> Remember Me</label>
</div>
<div class="form-group">
<p>Not registered? <a href="register.php">Sign Up</a> | <a href="forgot2.html">Forgot Password?</a></p>
</div>
<div class="form-group">
<input type="submit" name="submit" value="Login" class="btn btn-primary">
</div>
<div class="form-group"><?php echo $error;?></div>
</form>
<!-- END Sign In Form -->
</div>
</div>
<div class="row" style="padding-top: 60px; clear: both;">
<div class="col-md-12 text-center"><p><small>© All Rights Reserved. Designed by <a href="#">SmurtsMedia</a></small></p></div>
</div>
</div>
<!-- jQuery -->
<script src="js/jquery.min.js"></script>
<!-- Bootstrap -->
<script src="js/bootstrap.min.js"></script>
<!-- Placeholder -->
<script src="js/jquery.placeholder.min.js"></script>
<!-- Waypoints -->
<script src="js/jquery.waypoints.min.js"></script>
<!-- Main JS -->
<script src="js/main.js"></script>
</body>
</html>
答案 0 :(得分：1)
/**
* Class to do some cool stuff
* Original source:
* <pre>
* See <a href="http://stackoverflow.com/questions/
and-huge-amouts-of-URL-address-which-does-not-fit-to-80-chars">NameOfyourLink</a>
* </pre>
*/
答案 1 :(得分：0)
添加die() OR exit() after your header redirect更改代码，如下所示
if(mysqli_num_rows($result) == 1) {
$_SESSION['username'] = $login_user; // Initializing Session
header("location: elements.php"); // Redirecting To Other Page
die(); // add die()
}else {
$error = "Incorrect username or password.";
}
}