Setup

Setup a new directory for the project and enter the directory

mkdir squad-demo
cd squad-demo

Install the Squad package

composer require smaameri/squad:dev-main

Create a new file index.php and with the following code

<?php

require __DIR__ . '/vendor/autoload.php';

use Squad\ChatOpenAI;

$chat = new ChatOpenAI(getenv('OPENAI_API_KEY'));
$response = $chat->sendMessage('Hello, world!');

var_dump($response);

Now export your OpenAI API key

export OPENAI_API_KEY=sk-...

You are now ready to run the script

php index.php
string(34) "Hello! How can I assist you today?"