我有一个网站,我将用户名和哈希密码存储在一个表中。我正在尝试将此信息(用户名和哈希密码)与从我的登录站点传递的登录信息进行比较。不幸的是,这一直在崩溃。如果有人能指出我做错了什么的正确方向,我将不胜感激。下面是我用来检查登录的代码。这可能很简单,因为我对 php 还是很陌生。
<?php
$myServer = "server.domain.com";
$myUser = "readaccess";
$myPass = "password";
$myDB = "database";
$dbhandle = mssql_connect($myServer, $myUser, $myPass)
or die("Couldn't connect to SQL Server on $myServer");
$selected = mssql_select_db($myDB, $dbhandle)
or die("Couldn't open database $myDB");
// username and password sent from form
$myusername=$_POST['myusername'];
$mypassword=$_POST['mypassword'];
//declare the SQL statement that will query the database
$query = "SELECT password, salt ";
$query. = "FROM dbo.members ";
$query. = "WHERE username = '$myusername' ";
$result = mssql_query($query)
or die('A error occured: ' . mssql_get_last_message());
// SQL_num_row is counting table row
$count=mssql_num_rows($result);
if($count) < 1) //no such user exists
{
header('Location: main_login.php');
}
$userData = mssql_fetch_array($result, MSSQL_ASSOC);
$hash = hash('sha256', $userData['salt'] . hash('sha256', $mypassword) );
if($hash != $userData['password']) //incorrect password
{
header('Location: main_login.php');
}
else {
header('Location: index.php');
}
?>