如何在PHP中使用Guzzle实现异步调用

composer require guzzlehttp/guzzle

use GuzzleHttp\Client;
use GuzzleHttp\Promise;

$client = new Client([
    'timeout' => 5, // 请求超时时间，单位为秒
    'proxy' => 'http://proxy.example.com', // 可选，设置代理
]);

$request = $client->getAsync('https://api.example.com');

$request->then(
    function ($response) {
        echo $response->getBody();
    },
    function ($error) {
        echo '请求失败：' . $error->getMessage();
    }
);

use GuzzleHttp\Client;
use GuzzleHttp\Promise;

$client = new Client([
    'timeout' => 5,
]);

$request = $client->getAsync('https://api.example.com');

$request->then(
    function ($response) {
        echo $response->getBody();
    },
    function ($error) {
        echo '请求失败：' . $error->getMessage();
    }
);

// 等待所有异步请求完成
Promise\unwrap($request);