Multi curl

multi_curl.php

function multiRequest(array $requests = []): array
{
    $std_options = [
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_FOLLOWLOCATION => true,
        CURLOPT_MAXREDIRS => 5
    ];

    $mh = curl_multi_init();
    $handlers = [];
    foreach ($requests as $url) {
        $handler = curl_init($url);
        curl_setopt_array($handler, $std_options);
        $handlers[] = $handler;
        curl_multi_add_handle($mh, $handler);
    }

    $active = null;
    $result = [];

    do {
        do {
            $execrun = curl_multi_exec($mh, $active);
        } while ($execrun == CURLM_CALL_MULTI_PERFORM);
    } while ($active);

    foreach ($handlers as $i => $handler) {
        $result[$i] = curl_multi_getcontent($handler);
        curl_multi_remove_handle($mh, $handler);
    }

    curl_multi_close($mh);
    return $result;
}