好，这是 ini 文件：

<?php

    $db_params = parse_ini_file( dirname(__FILE__).'/db_params.ini', false );

    // .....

    $this->conn = new mysqli($db_params['host'], $db_params['user'], $db_params['password'], $db_params['dbname'], $db_params['port'], $db_params['socket']).mysqli_connect_error());

    // ...

?>

db_params.ini

db_params.ini

host=mysql.example.com
port=3306
socket=
user=testuser
password=myPasswort
dbname=myDatabase