问在Curl中一次访问多个URL

EN

$time_Start = microtime(true);

$ids = array(1,2,3,4,5,6); // You forex currency ids.
$response = php_curl_multi($ids);

echo "Time: ". (microtime(true)-$time_Start)."sec";
// Time: 0.7 sec

function php_curl_multi($ids){
    $parameters = "/api/forex/indicators?period=1d&access_key=API_KEY&id="; // ID will set dynamic
    $url        = "https://fcsapi.com".$parameters;

    $ch_index = array(); // store all curl init
    $response = array();

    // create both cURL resources
    foreach ($ids as $key => $id) {
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL,  $url.$id);
        curl_setopt($ch, CURLOPT_HEADER, 0);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        $ch_index[] = $ch;
    }

    //create the multiple cURL handle
    $mh = curl_multi_init();

    //add the handles
    foreach ($ch_index as $key => $ch) {
        curl_multi_add_handle($mh,$ch);
    }

    //execute the multi handle
    do {
        $status = curl_multi_exec($mh, $active);
        if ($active) {
            curl_multi_select($mh);
        }
    } while ($active && $status == CURLM_OK);

    //close the handles
    foreach ($ch_index as $key => $ch) {
        curl_multi_remove_handle($mh, $ch);
    }
    curl_multi_close($mh);


    // get all response
    foreach ($ch_index as $key => $ch) {
        $response[] = curl_multi_getcontent($ch);
    }

    return $response;
}