Is making asynchronous HTTP requests possible with PHP?

Question

I have a PHP script that needs to download several files from a remote server. At the moment I just have a loop downloading and processing the files with cURL, which means t

Answer 1

Check out curl-easy. It supports both blocking and not-blocking requests in parallel or single request at once. Also, it is unit-tested, unlike many simple or buggy libraries.

Disclosure: I am the author of this library. The library has it's own test suite so I'm pretty confident it is robust.

Also, check out example of use below:

getDefaultOptions()
    ->set(CURLOPT_TIMEOUT, 5)
    ->set(CURLOPT_RETURNTRANSFER, true);
// Set callback function to be executed when request will be completed
$queue->addListener('complete', function (cURL\Event $event) {
    $response = $event->response;
    $json = $response->getContent(); // Returns content of response
    $feed = json_decode($json, true);
    echo $feed['entry']['title']['$t'] . "\n";
});

$request = new cURL\Request('http://gdata.youtube.com/feeds/api/videos/XmSdTa9kaiQ?v=2&alt=json');
$queue->attach($request);

$request = new cURL\Request('http://gdata.youtube.com/feeds/api/videos/6dC-sm5SWiU?v=2&alt=json');
$queue->attach($request);

// Execute queue
$queue->send();