登录php后重定向到首页
[英]Redirect to home page after login php
问题描述
我已经创建了一个登录表单。 如何使用户登录时重定向到显示其姓名的页面？ 我已经遍历了许多有关如何执行此操作的教程，但是没有什么是很好的...
main_login.php：
<table width="300" border="0" align="center" cellpadding="0" cellspacing="1" bgcolor="#CCCCCC">
<tr>
<form name="form1" method="post" action="checklogin.php">
<td>
<table width="100%" border="0" cellpadding="3" cellspacing="1" bgcolor="#FFFFFF">
<tr>
<td colspan="3"><strong>Member Login </strong></td>
</tr>
<tr>
<td width="78">Username</td>
<td width="6">:</td>
<td width="294"><input name="myusername" type="text" id="myusername"></td>
</tr>
<tr>
<td>Password</td>
<td>:</td>
<td><input name="mypassword" type="text" id="mypassword"></td>
</tr>
<tr>
<td> </td>
<td> </td>
<td><input type="submit" name="Submit" value="Login"></td>
</tr>
</table>
</td>
</form>
</tr>
</table>
login_success.php：
<?php
session_start();
if(!session_is_registered(myusername)){
header("location:http://main_login.php");
}
?>
<html>
<body>
Login Successful
</body>
</html>
checklogin.php：
<?php
$host="host"; // Host name
$username="username"; // Mysql username
$password="password"; // Mysql password
$db_name="database"; // Database name
$tbl_name="table"; // Table name
// Connect to server and select databse.
mysql_connect("$host", "$username", "$password")or die("cannot connect");
mysql_select_db("$db_name")or die("cannot select DB");
// username and password sent from form
$myusername=$_POST['myusername'];
$mypassword=$_POST['mypassword'];
// To protect MySQL injection (more detail about MySQL injection)
$myusername = stripslashes($myusername);
$mypassword = stripslashes($mypassword);
$myusername = mysql_real_escape_string($myusername);
$mypassword = mysql_real_escape_string($mypassword);
$sql="SELECT * FROM $tbl_name WHERE username='$myusername' and password='$mypassword'";
$result=mysql_query($sql);
// Mysql_num_row is counting table row
$count=mysql_num_rows($result);
// If result matched $myusername and $mypassword, table row must be 1 row
if($count==1){
// Register $myusername, $mypassword and redirect to file "login_success.php"
session_register("myusername");
session_register("mypassword");
header("location:login_success.php");
}
else {
echo "Wrong Username or Password";
}
?>
3 个解决方案
解决方案1
2 已采纳 2012-06-07 18:31:49
这个例子应该对您有所帮助，但是我建议使用mysqli及其将密码以纯文本存储的方式是一个非常糟糕的主意。 您应该考虑查找mysqli，对密码进行哈希处理，并开始熟悉php 5.4，因为此处使用的许多功能已更改并且不再受支持。
checklogin.php
<?php
$host="host"; // Host name
$username="username"; // Mysql username
$password="password"; // Mysql password
$db_name="database"; // Database name
$tbl_name="table"; // Table name
// Connect to server and select databse.
mysql_connect("$host", "$username", "$password")or die("cannot connect");
mysql_select_db("$db_name")or die("cannot select DB");
// username and password sent from form
$myusername=$_POST['myusername'];
$mypassword=$_POST['mypassword'];
// Remove Magic Quotes
if (get_magic_quotes_gpc()){
$myusername = stripslashes($myusername);
$mypassword = stripslashes($mypassword);
}
$sql = sprintf(
"SELECT * FROM $tbl_name WHERE username='%s' and password='%s' LIMIT 1;",
mysql_real_escape_string($myusername),
mysql_real_escape_string($mypassword)
);
$result = mysql_query($sql);
// MySQL count
$count = mysql_num_rows($result);
if ($count){
$_SESSION['username'] = $myusername; // $_SESSION['loggedin'] = true or false would work too
$_SESSION['mypassword'] = $mypassword; // Why store the password in session data?
header("Location: login_success.php");
}else{
header("Location: main_login.php?msg=Login_Failed");
}
?>
login_success.php
<?php
session_start();
if (!isset($_SESSION['username']) || empty($_SESSION['username']){
header("Location: mail_login.php");
}
?>
<html>
<body>
Welcome <?php echo $_SESSION['username']; ?>
Login Successful
</body>
</html>
main_login.php
<?php
if (isset($_GET['msg']) && !empty($_GET['msg']) echo $_GET['msg'];
?>
<table width="300" border="0" align="center" cellpadding="0" cellspacing="1" bgcolor="#CCCCCC">
<tr>
<form name="form1" method="post" action="checklogin.php">
<td>
<table width="100%" border="0" cellpadding="3" cellspacing="1" bgcolor="#FFFFFF">
<tr>
<td colspan="3"><strong>Member Login </strong></td>
</tr>
<tr>
<td width="78">Username</td>
<td width="6">:</td>
<td width="294"><input name="myusername" type="text" id="myusername"></td>
</tr>
<tr>
<td>Password</td>
<td>:</td>
<td><input name="mypassword" type="text" id="mypassword"></td>
</tr>
<tr>
<td> </td>
<td> </td>
<td><input type="submit" name="Submit" value="Login"></td>
</tr>
</table>
</td>
</form>
</tr>
</table>
使用风险自负。 :)
解决方案2
1 2012-06-07 17:03:14
要发出HTTP重定向， Location头应该正确地大写，并且在头名称及其值之间包含空格：
header('Location: login_success.php');
解决方案3
1 2012-06-07 17:05:00
如果登录成功，您似乎已经能够将用户重定向到页面。 您只需要向该页面添加一些代码，例如echo $ _SESSION ['username'];。 希望能帮助到你。
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