Question

我想在我的网站项目上建立一个登录连接。我有一些错误，不知道如何解决它们。我试过看一些教程..

请你给我一点帮助吗？

我的代码：

ob_start();
$host="localhost"; // Host name 
$username=""; // Mysql username 
$password=""; // Mysql password 
$db_name="test"; // Database name 
$tbl_name="members"; // 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");

// Define $myusername and $mypassword 

**$myusername=$_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['myusername']= $myusername;
    $_SESSION['mypassword']= $mypassword; 
    header("location:login_success.php");
}
else {
    echo "Wrong Username or Password";
}
ob_end_flush();

获取这些错误：

Notice: Undefined index: myusername in C:\xampp\htdocs\gaming\admin\admin_login.php on line 16

Notice: Undefined index: mypassword in C:\xampp\htdocs\gaming\admin\admin_login.php on line 17

PHP中的登录管理问题（未定义索引：myusername in ...）

0 个答案: