OpenAI GPT-3 PHP example

composer.json

{
    "require": {
        "openai-php/client": "^0.5.2",
        "symfony/http-client": "^6.2",
        "nyholm/psr7": "^1.8",
        "guzzlehttp/guzzle": "^7.7"
    },
    "config": {
        "allow-plugins": {
            "php-http/discovery": true
        }
    }
}

main.php

<?php

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

$apiKey = 'put-your-api-key-here';

$client = OpenAI::client($apiKey);

$totalTokens = 0;

function translate(string $countryName)
{
    global $client, $totalTokens;

    $flattend = implode("\n", $list);

    while (1) {
        try {
            $response = null;
            $response = $client->chat()->create([
                'model' => 'gpt-3.5-turbo',
                'messages' => [
                    [
                        'role' => 'user',
                        'content' => "幫我翻譯成繁體中文，每行一個翻譯結果\n----\nTaiwan Taipei\nThailand Lop Buri"
                    ],
                    [
                        'role' => 'assistant',
                        'content' => "台灣 台北\n泰國 華富里府",
                    ],
                    [
                        'role' => 'user',
                        'content' => "幫我翻譯成繁體中文，每行一個翻譯結果\n----\n" . $countryName,
                    ],
                ],
            ]);
        } catch (\Exception $e) {
            echo "exception: " . $e->getMessage() . "\n";
            echo "\nretry again ... \n";
            continue;
        } catch (\Error $e) {
            echo "exception: " . $e->getMessage() . "\n";
            echo "\nretry again ... \n";
            continue;
        }

        if (!property_exists($response, 'choices')) {
            $totalTokens += $response->usage->totalTokens;
            // might be error
            echo "error occurs";
            var_dump($response->toArray());
            echo "\nRetrying ....\n";
        } else {
            break;
        }
    }

    $totalTokens += $response->usage->totalTokens;

    if (0 < count($response->choices)) {
        return $response->choices[0]->message->content;
    } else {
        return null;
    }
}

echo translate('taiwan taichung') . "\n";

echo "total tokens: $totalTokens \n";