php的curl并发代码

以下是使用cURL的方式来请求来生成并发请求

<?php

function makeConcurrentRequests($urls) {
    $mh = curl_multi_init();
    $chs = [];

    // 初始化每个请求的 cURL 句柄
    foreach ($urls as $url) {
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_multi_add_handle($mh, $ch);
        $chs[] = $ch;
    }

    $running = null;
    // 执行并发请求
    do {
        curl_multi_exec($mh, $running);
    } while ($running > 0);

    $results = [];
    // 获取每个请求的结果
    foreach ($chs as $i => $ch) {
        $results[$i] = curl_multi_getcontent($ch);
        curl_multi_remove_handle($mh, $ch);
        curl_close($ch);
    }

    curl_multi_close($mh);
    return $results;
}

// 示例 URL 列表
$urls = [
    'https://jsonplaceholder.typicode.com/posts/1',
    'https://jsonplaceholder.typicode.com/posts/2',
    'https://jsonplaceholder.typicode.com/posts/3'
];

$results = makeConcurrentRequests($urls);

foreach ($results as $index => $result) {
    echo "Result from URL " . ($index + 1) . ":\n";
    echo $result . "\n\n";
}
?>

curl的并发样例如上述代码，但可以更具自己的要求进行优化，但大体上是可以使用的