How to connect to PostgreSQL DB with PHP?

Question

As you can already see in the title I want to connect to a PostgreSQL Database I created on a server using PHP and Yii2. Unfortunately I am a total novice when it comes to this kind of job and I have never done it before so I have several questions that I hope some of you can answer.

1. I am using Yii2 basic and in the config directory there is a db.php file containing the following code:

    return [
        'class' => 'yii\db\Connection',
        'dsn' => 'pgsql:host=localhost;dbname=my1DB',
        'username' => 'root',
        'password' => '',
        'charset' => 'utf8',
    ];

Is the code actually OK? Instead of localhost I will be using the host IP of course. The db my1DB is actually created and already contains a relation named countries .

2. I have Yii2 basic installed on my client. Now my question is, do I need to install it on the server as well? It may be a dumb question and I am truly sorry if it is, but I am not sure if I am understanding it all correctly. So, does the db.php file need to be on the server? Or is it OK if it is simply installed on my client?

Answer 1

db.php 需要在运行 PHP 的服务器端，以防 PostgreSQL 服务器运行在 PHP 所在的同一台服务器上，您可以将其保留为 localhost，它应该可以正常工作，只需确保凭据和数据库名称存在。