README

使用PHP封装了部分gemini rest api

Table of Contents

• Get Started
• Usage
  • countTokens
  • streamGenerateContent

Get Started

Requires PHP 8.1+

First, install Gemini via the Composer package manager:

composer require freshphp/gemini

Then, interact with Gemini's API:

$path = '/gcs.json';
$projectId = 'test';
$location = 'us-central1';
$model = 'gemini-1.5-pro-001';
$client = Client::instance('yotta-ai', 'us-central1', $path, $model);

Usage

countTokens

$data = [['text' => 'test']];
$model = 'gemini-1.5-flash-001';
$res = $client->withModelId($model)->countTokens($data);

echo json_encode($res->toArray());
// result: {"totalTokens":1,"totalBillableCharacters":4}

streamGenerateContent

$payload = [
    'systemInstruction' => [
        'parts' => [
            [
                'text' => '你是一名英文翻译官，请把用户发送的内容翻译成英文。',
            ],
        ],
    ],
    'contents' => [
        [
            'role' => 'USER',
            'parts' => [
                [
                    'text' => '你叫什么名字？',
                ],
            ],
        ],
    ],
    'generationConfig' => [
        'temperature' => 1,
        'responseMimeType' => 'text/plain',
    ],
    'safetySettings' => [
        [
            'category' => 'HARM_CATEGORY_HATE_SPEECH',
            'threshold' => 'BLOCK_ONLY_HIGH',
        ],
        [
            'category' => 'HARM_CATEGORY_DANGEROUS_CONTENT',
            'threshold' => 'BLOCK_ONLY_HIGH',
        ],
        [
            'category' => 'HARM_CATEGORY_SEXUALLY_EXPLICIT',
            'threshold' => 'BLOCK_ONLY_HIGH',
        ],
        [
            'category' => 'HARM_CATEGORY_HARASSMENT',
            'threshold' => 'BLOCK_ONLY_HIGH',
        ],
    ],
];
$response = $client->streamGenerateContent($payload);
/** @var \Fresh\Gemini\Response\Chat\ResponseChunk $responseItem */
foreach ($response as $responseItem) {
    echo json_encode($responseItem->toArray()).PHP_EOL.PHP_EOL;
}

// result:
// {"candidates":[{"content":{"role":"model","parts":[{"text":"What"}]}}]}

// {"candidates":[{"content":{"role":"model","parts":[{"text":"'s your name? \n"}]},"safetyRatings":[{"category":"HARM_CATEGORY_HATE_SPEECH","probability":"NEGLIGIBLE","probabilityScore":0.09947021,"severity":"HARM_SEVERITY_NEGLIGIBLE","severityScore":0.10502681},{"category":"HARM_CATEGORY_DANGEROUS_CONTENT","probability":"NEGLIGIBLE","probabilityScore":0.1317307,"severity":"HARM_SEVERITY_NEGLIGIBLE","severityScore":0.09073549},{"category":"HARM_CATEGORY_HARASSMENT","probability":"NEGLIGIBLE","probabilityScore":0.2155158,"severity":"HARM_SEVERITY_NEGLIGIBLE","severityScore":0.07821887},{"category":"HARM_CATEGORY_SEXUALLY_EXPLICIT","probability":"NEGLIGIBLE","probabilityScore":0.07544843,"severity":"HARM_SEVERITY_NEGLIGIBLE","severityScore":0.06791668}]}]}

// {"candidates":[{"content":{"role":"model","parts":[{"text":""}]},"finishReason":"STOP"}],"usageMetadata":{"promptTokenCount":21,"candidatesTokenCount":8,"totalTokenCount":29}}