PHP中的异步Curl请求

在PHP中异步执行curl post请求可以提高性能并防止潜在的延迟。以下是如何使用不同的方法实现此目的：

使用异步 cURL 函数

使用curl_multi_*时，您可以同时执行多个 cURL 请求。下面是一个示例代码：

$curl = curl_init($request);
curl_setopt($curl, CURLOPT_URL, $url_onfleet);
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl, CURLOPT_USERPWD, $api_onfleet);
curl_setopt($curl, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
curl_setopt($curl, CURLOPT_ENCODING, "");  
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, '{"destination":{"address":{"unparsed":"'.$pickup_address.'"},"notes":"'.$comments.'"},"recipients":[{"name":"'.$name.'","phone":" 61'.$phone.'","notes":"Number of riders: '.$riders.'"}],"completeBefore":'.$timestamp.',"pickupTask":"yes","autoAssign":{"mode":"distance"}}');

$mh = curl_multi_init();
curl_multi_add_handle($mh,$curl);

$active = null;
//execute the handles
do {
    $mrc = curl_multi_exec($mh, $active);
} while ($mrc == CURLM_CALL_MULTI_PERFORM);

while ($active && $mrc == CURLM_OK) {
    if (curl_multi_select($mh) != -1) {
        do {
            $mrc = curl_multi_exec($mh, $active);
        } while ($mrc == CURLM_CALL_MULTI_PERFORM);
    }
}
//close the handles
curl_multi_remove_handle($mh, $curl);
curl_multi_close($mh);

使用 pThreads

pThreads 是 PHP 的线程库。以下是如何将它用于异步curl请求：

class Request1 extends Thread {
    public function run() {
        // Execute the first cURL request here
    }
}

class Request2 extends Thread {
    public function run() {
        // Execute the second cURL request here
    }
}

$req1 = new Request1();
$req1->start();
$req2 = new Request2();
$req2->start();

两种方法都允许异步执行curl请求，从而实现更好的性能和高效处理并行任务。