无法在'<severname> .net'（110）

Question

我正在尝试连接到服务器但收到此错误：

  

无法连接到'servername.net'（110）

上的MySQL服务器

<?php 
$servername = "<server>";
$username = "<user>";
$password = "<pass>";
$dbname = "<dbname>";

// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);

if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
} 
echo "Connected successfully";

?>