<?php
$servername = "127.0.0.1";
$username = "napolicy";
$password = "fWn56ihLZEY7DnyP";
 
// 创建连接
$conn = new mysqli($servername, $username, $password);
 
// 检测连接
if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);


} 
echo "连接成功";
?>