Async Curl Request in PHP

Executing curl post requests asynchronously in PHP can enhance performance and prevent potential delays. Here's how you can achieve this using different methods:

Using Async cURL Functions

When using curl_multi_*, you can execute multiple cURL requests simultaneously. Here's an example code:

$curl = curl_init($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);

Using pThreads

pThreads is a threading library for PHP. Here's how you can use it for async curl requests:

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();

Both methods allow asynchronous execution of curl requests, enabling better performance and efficient handling of parallel tasks.