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[英]Cannot connect to Database with mysqli, mysqli_connect, or PDO
[英]Windows 10 XAMPP - PDO connection fine, cannot connect via mysqli or mysqli_connect
我正在使用已安裝XAMPP(v3.2.2)的Windows 10 PC。
如果我在MySQL中這樣做:
select version();
-- 10.1.32-MariaDB
確認版本...
我有一個名為“ wp”的測試數據庫,並且用戶名和密碼都設置為“ wp”。
我可以使用PDO毫無問題地連接到數據庫,但是我無法使用mysqli或mysqli_connect進行連接,而且我也看不到為什么。 到目前為止,我在此上已經浪費了幾個小時。 我試圖在XAMPP上安裝Wordpress,但安裝程序說它無法連接到數據庫,因此我一直在對此進行測試,因此出現了這個問題。
$servername = "localhost";
$username = "wp";
$password = "wp";
$dbname = "wp";
$db = new mysqli($servername, $username, $password, $dbname);
// Warning: mysqli::__construct(): (HY000/1045): Access denied for user 'wp'@'localhost' (using password: YES) in C:\xampp\public_html\_conn.php on line 6
$host = "localhost";
$uname = "wp";
$pwd = "wp";
$dbname = "wp";
$conn = mysqli_connect($host, $uname, $pwd, $dbname);
// Warning: mysqli_connect(): (HY000/1045): Access denied for user 'wp'@'localhost' (using password: YES) in C:\xampp\public_html\_conn.php on line 13
$config['db'] = array(
'host' => 'localhost',
'username' => 'wp',
'password' => 'wp',
'dbname' => 'wp'
);
try {
$pdo = new PDO('mysql:host=' .$config['db']['host']. ';port=33066;dbname=' .$config['db']['dbname'], $config['db']['username'], $config['db']['password']);
$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$pdo->setAttribute(PDO::ATTR_EMULATE_PREPARES, false);
$pdo->setAttribute(PDO::NULL_EMPTY_STRING, true);
$pdo->exec("SET CHARACTER SET utf8mb4");
}
catch(PDOException $e) {
echo 'ERROR: ' . $e->getMessage();
}
// connects fine
wp
用戶具有正確的訪問級別:
由於使用相同的用戶詳細信息通過PDO進行連接,但它們不適用於其他方法。
我已經檢查過使用phpinfo();
並據我所知可以看到已設置mysqli
(我搜索了mysqli_connect
但看不到列出的內容):
我是否缺少明顯的東西?
嘗試這個
//This line of code connects to mysql database
define("HOST_NAME", "localhost:3306");
define("HOST_USER", "wp");
define("HOST_PASS", "wp");
define("HOST_DB", "wp");
$db = new mysqli(HOST_NAME, HOST_USER, HOST_PASS, HOST_DB);
// This line of code checks if connection error exists.
if($db->connect_error) {
echo $db->connect_errno . " " . $db->connect_error;
} else {
echo "Connection successful.";
}
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