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我正在创建用于登录和注销的表单。 我的问题是，当用户提交他们的用户名和密码，然后显示与该用户名的欢迎消息。文件在下面给出。在php＆mysql中显示带有用户名的欢迎消息
include.php
<?php
session_start();
$host = "VKSolutions";
$username = "VKSolutions";
$password = "[email protected]";
$db = "VKSolutions";
@mysql_connect($host,$username,$password) or die ("error");
@mysql_select_db($db) or die("error");
?>
的login.php
<?php
require_once('include.php');
$error = '';
$form = $_POST['submit'];
$user = $_POST['user'];
$password = $_POST['password'];
if(isset($form)) {
if(isset($user) && isset($password) && $user !== '' && $password !== '') {
$sql = mysql_query("SELECT * FROM `accounts` WHERE user='$user' and
password='$password';");
if(mysql_num_rows($sql) != 0) { //success
$_SESSION['logged-in'] = true;
header('Location: members.php');
exit;
} else { $error = "Incorrect login info"; }
} else { $error = 'All information is not filled out correctly';}
}
?>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Login</title>
</head>
<body>
<table width="80%" border="0"><form action="<?php $PHP_SELF; ?>" method="post" >
<tr>
<td><label>Employee Name:</label></td>
<td><input name="user" placeholder="Enter Name" type="text" value="<?php echo "$user";?>" /></td>
</tr>
<tr>
<td><label>Password:</label></td>
<td><input name="password" placeholder="Enter Password" type="password" /></td>
</tr>
<tr>
<td> </td>
<td><input valin="right" name="submit" type="submit" value="Log In" /></td>
</tr></form>
</table>
<?php
echo "<br /><span style=\"color:red\">$error</span>";
?>
</body>
</html>
members.php
<?php
require_once('include.php');
if (!isset($_SESSION['logged-in']) || $_SESSION['logged-in'] !== true) {
header('Location: login.php');
exit;
}
?>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Staff Area</title>
</head>
<body>
<div style="margin-top:50px; color:#00F; margin-left:50px; font-size:18px; position:absolute">Welcome<?php echo "$user";?></div>
</body>
</html>
logout.php
<?php
session_start();
// if the user is logged in, unset the session
if (isset($_SESSION['logged-in'])) {
unset($_SESSION['logged-in']);
}
// now that the user is logged out,
// go to login page
header('Location: login.php');
?>
在我的members.php中它是登录的，但不显示用户名。我需要这个用户名。 请找出有什么问题。 谢谢。
在session中设置用户名以及$ _SESSION ['logged-in']'。 – Rikesh