Empire cms는 네트워크 연결을 어떻게 사용합니까?

<code class="php">$dbhost = "localhost";
$dbuser = "root";
$dbpw = "password";
$dbname = "database_name";</code>

<code class="php">$linkid = @mysql_connect($dbhost, $dbuser, $dbpw, true);
mysql_select_db($dbname, $linkid);
$this->add_connect($linkid, true);</code>

<code class="php">$sql = "SELECT * FROM table_name";
$result = $this->query($sql, $linkid);</code>

<code class="php">$row = $this->fetch_array($result);</code>

<code class="php">$db = new db;

// 创建网络连接
$linkid = $db->add_connect($dbhost, $dbuser, $dbpw, $dbname);

// 执行查询
$sql = "SELECT * FROM users";
$result = $db->query($sql, $linkid);

// 获取结果
while ($row = $db->fetch_array($result)) {
    echo "用户名：" . $row['username'] . "<br>";
    echo "密码：" . $row['password'] . "<br><br>";
}</code>