在PHP中传递多个HTTP API URL

$apiUrls = [
    'http://api1.example.com',
    'http://api2.example.com',
    'http://api3.example.com'
];

foreach ($apiUrls as $url) {
    // 发送HTTP请求
    // ...
}

$apiUrls = 'http://api1.example.com,http://api2.example.com,http://api3.example.com';
$urls = explode(',', $apiUrls);

foreach ($urls as $url) {
    // 发送HTTP请求
    // ...
}

use GuzzleHttp\Client;
use GuzzleHttp\Promise;

$apiUrls = [
    'http://api1.example.com',
    'http://api2.example.com',
    'http://api3.example.com'
];

$client = new Client();

$promises = [];
foreach ($apiUrls as $url) {
    $promises[] = $client->getAsync($url);
}

$results = Promise\unwrap($promises);

foreach ($results as $response) {
    // 处理每个响应
    // ...
}