用
mysqli_connect() 連 MySQL 資料庫——傳入 servername、username、password 三個參數。連線成功就印出 Connected successfully，失敗就用 mysqli_connect_error() 取得錯誤訊息，最後用 close() 關閉連線。
<?php
$servername = "localhost";
$username = "username";
$password = "password";
// Create connection
$conn = mysqli_connect($servername, $username, $password);
// Check connection
if (!$conn) {
die("Connection failed: " . mysqli_connect_error());
}
echo "Connected successfully";
$conn->close();
?>output:
Connected successfully