PHP MySQL驗證錯誤

Question

我已經創建了一個html表單（demo.html）& POST它對php文件（demo1.php）的值。然後，我在MySQL &創建的數據庫在PHP文件（demo1.php）寫的連接代碼，但它提供了以下錯誤

警告：mysql_connect（）函數[function.mysql-連接]：拒絕訪問用戶「根'@' 本地主機」（使用密碼：是）在C：\ XAMPP \ htdocs中\ demo1.php第8行 錯誤連接到MySQL

<?php 
// contact to database 
$dbhost = 'localhost'; 
$dbuser = 'root'; 
$dbpass = 'password'; 

$conn = mysql_connect($dbhost, $dbuser, $dbpass) or die ('Error connecting to mysql'); 
//$conn = mysql_connect("localhost","root","password") or die ('Error connecting to mysql'); 

$dbname = 'test'; 
mysql_select_db($dbname,$conn); 

//$connect = mysql_connect("localhost", "root", "pass") or die ("Error , check your server connection."); 

//mysql_select_db("test"); 



//Get data in local variable 

$v_name=$_POST['name']; 

$v_email=$_POST['email']; 

$v_msg=$_POST['msg']; 



// check for null values 

if ($v_name=="" or $v_msg=="") 

echo "All fields must be entered, hit back button and re-enter information"; 

else{ 

$query="insert into contact(name,email,msg) values('$v_name','$v_email','$v_msg')"; 

mysql_query($query) or die(mysql_error()); 

echo "Your message has been received"; 

mysql_close($conn); 

} 

?> 

Answer 1

密碼用戶root不正確。本地（家庭）服務器上

默認密碼是空的，所以我認爲這可以幫助：

$dbpass = ''; 

Answer 2

錯誤是相當明確的 - 你使用的用戶名/密碼組合不正確。如果這是全新安裝，則需要設置密碼和/或創建新用戶。

• mysqladmin
• User Creation
• Granting Privileges
• Setting Passwords

Answer 3

For Local Xampp username-root password --'' 

<?php 
// contact to database 
$dbhost = 'localhost'; 
$dbuser = 'root'; 
$dbpass = ''; 

$conn = mysql_connect($dbhost, $dbuser, $dbpass) or die ('Error connecting to mysql'); 
?> 

Answer 4

造成這種情況的主要原因是密碼錯誤。設置xampp時是否指定了根密碼？如果沒有，那麼將密碼保留空白，因爲上述隱含狀態爲