錯誤1045：訪問拒絕用戶'root'@'localhost'使用密碼NO ...當通過擴展類連接時，其他人

Question

我有一個連接到數據庫沒有問題的類。擴展該類時，同一連接失敗。憑據在phpMyAdmin和命令行中工作。

錯誤嘗試連接到服務器時，我得到：

1045: Access denied for user 'phpClasses'@'Jesse-Server' (using password: NO) 

我也曾嘗試用相同的結果備用憑據。

以下是父類的構造函數和屬性定義，然後在子類，那麼調用者模式：

//Database.php 
private $dbhost; 
private $dbname; 
private $dbusername; 
private $dbuserpassword; 
private $dbtableprefix; 
private $dbport; 
protected $dbC; 
public function __construct($ndbhost = "localhost", $ndbname = "", $ndbusername = "", $ndbuserpassword = "", $ndbtableprefix = " ", $ndbport = 3600) 
{ 
$this->dbhost = $ndbhost; // Default = localhost 
$this->dbname = $ndbname; // Default = None 
$this->dbusername = $ndbusername; //Default = None 
$this->dbuserpassword = $ndbuserpassword; // Default = None 
$this->dbtableprefix = $ndbtableprefix; //Default = None sets the prefix before the table name so that it can be used with the same db with different tables. 
$this->dbport = $ndbport; // Default = 3600 
// starting the connection 
@ $this->dbC = new mysqli($this->dbhost, $this->dbusername, $this->dbuserpassword, $this->dbname);//, $this->dbport); 
if ($this->dbC->connect_error) { 
    //catch error connecting. 
    die("There was a connection error while attempting to connect to the database " . $this->dbname . " on " . $this->dbhost . ":" . $this->dbport . ". The following is the error that we received back: <strong>" . $this->dbC->connect_errno . ": " . $this->dbC->connect_error . "</strong>\n Please correct this issue, if you need assistance see your database or IT administrator."); 
}else{ 
    //echo "Connected to " . $this->dbname . " on " . $this->dbhost . ":" . $this->dbport; 
} 
} 

現在孩子

//QueryBuilder.php 
protected $dbC; 
private $host; 
private $dbName; 
private $dbUser; 
private $dbPassword; 
private $tablePrefix; 
private $dbport; 
function __construct($ndbhost = "localhost", $ndbname = "", $ndbusername = "", $ndbuserpassword = "", $ndbtableprefix = " ", $ndbport = 3600){ 
    //default Constructor 
    $this->host = $ndbhost; 
    $this->dbName = $ndbname; 
    $this->dbUser = $ndbusername; 
    $this->dbPassword = $ndbuserpassword; 
    $this->tablePrefix = $ndbtableprefix; 
    $this->dbport = $ndbport; 

    echo $this->host . ','; 
    echo $this->dbName . ','; 
    echo $this->dbUser . ','; 
    echo $this->dbPassword . ','; 
    echo $this->tablePrefix . ','; 
    echo $this->dbport; 

    parent::__construct($this->host, $this->dbName, $this->dbUser, $this->dbpassword, $this->tableprefix, $this->dbport); 
    $this->dbC = parent::getdbconnection(); 
} 

模型

//model.php 
require("./Class/Database.php"); 
require("./Class/QueryBuilder.php"); 
$result=false; 
$host = '192.168.1.2'; //or localhost , same thing, also tried 127.0.0.1 
$database = 'phpclasses'; 
$dbuser = 'phpClasses'; 
$dbuserpw = 'test1234'; 
//now I want to see that the connection has been made. 
//$db = new DatabaseClass($host, $database, $dbuser, $dbuserpw); 
$qb = new QueryBuilderClass($host, $database, $dbuser, $dbuserpw); 

我感謝大家的時間和你的幫助;

傑西芬德

Answer 1

在孩子。對於$ this-> dbpassword vs $ this-> dbPassword，您有混合大小寫拼寫錯誤。與$ tablePrefix和$ tableprefix相同