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    curl_multi_init

    (PHP 5, PHP 7, PHP 8)

    curl_multi_init — Retourne un nouveau cURL multiple

    Description

    curl_multi_init(): CurlMultiHandle

    Autorise l'exécution de multiples gestionnaires cURL de façon asynchrone.

    Liste de paramètres

    Cette fonction ne contient aucun paramètre.

    Valeurs de retour

    Retourne un gestionnaire cURL multiple.

    Historique

    Version Description
    8.0.0 Cette fonction retourne désormais une instance de CurlMultiHandle; auparavant, une resource était retournée.

    Exemples

    Exemple #1 Exemple avec curl_multi_init()

    Cet exemple crée deux gestionnaires cURL, les ajoute à un gestionnaire multiple, et les exécute de façon asynchrone.

    <?php
    // Création des ressources cURL
    $ch1 = curl_init();
    $ch2 = curl_init();

    // Définit l'URL ainsi que d'autres options
    curl_setopt($ch1, CURLOPT_URL, "http://lxr.php.net/");
    curl_setopt($ch1, CURLOPT_HEADER, 0);
    curl_setopt($ch2, CURLOPT_URL, "http://www.php.net/");
    curl_setopt($ch2, CURLOPT_HEADER, 0);

    // Création du gestionnaire cURL multiple
    $mh = curl_multi_init();

    // Ajoute les deux gestionnaires
    curl_multi_add_handle($mh,$ch1);
    curl_multi_add_handle($mh,$ch2);

    // Exécute le gestionnaire multiple
    do {
    $status = curl_multi_exec($mh, $active);
    if (    $active) {
    curl_multi_select($mh);
    }
    } while (    $active && $status == CURLM_OK);

    // Ferme les gestionnaires
    curl_multi_remove_handle($mh, $ch1);
    curl_multi_remove_handle($mh, $ch2);
    curl_multi_close($mh);

    ?>

    Voir aussi

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    User Contributed Notes 4 notes

    up
    49
    w_haigh at yahoo dot com
    9 years ago
    Here's an easier to follow example, From : http://arguments.callee.info/2010/02/21/multiple-curl-requests-with-php/

    // build the individual requests, but do not execute them
    $ch_1 = curl_init('http://webservice.one.com/');
    $ch_2 = curl_init('http://webservice.two.com/');
    curl_setopt($ch_1, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch_2, CURLOPT_RETURNTRANSFER, true);
     
    // build the multi-curl handle, adding both $ch
    $mh = curl_multi_init();
    curl_multi_add_handle($mh, $ch_1);
    curl_multi_add_handle($mh, $ch_2);
     
    // execute all queries simultaneously, and continue when all are complete
      $running = null;
      do {
        curl_multi_exec($mh, $running);
      } while ($running);

    //close the handles
    curl_multi_remove_handle($mh, $ch1);
    curl_multi_remove_handle($mh, $ch2);
    curl_multi_close($mh);
     
    // all of our requests are done, we can now access the results
    $response_1 = curl_multi_getcontent($ch_1);
    $response_2 = curl_multi_getcontent($ch_2);
    echo "$response_1 $response_2"; // output results
    up
    45
    xxavalanchexx at gmail dot com
    10 years ago
    According to https://bugs.php.net/bug.php?id=61141:

    On Windows setups using libcurl version 7.24 or later (which seems to correspond to PHP 5.3.10 or later), you may find that curl_multi_select() always returns -1, causing the example code in the documentation to timeout. This is, apparently, not strictly a bug: according to the libcurl documentation, you should add your own sleep if curl_multi_select returns -1.

    Therefore, in order to work correctly on Windows for PHP 5.3.10+, the second loop in the example code should look something like the following:

    <?php
    while ($active && $mrc == CURLM_OK) {
        if (    curl_multi_select($mh) == -1) {
                usleep(100);
        }
        do {
                $mrc = curl_multi_exec($mh, $active);
        } while (    $mrc == CURLM_CALL_MULTI_PERFORM);
    }
    ?>
    up
    4
    Adam Richardson
    7 years ago
    One of the URLs used in the first example on this page (lxr.php.net) now gives a proxy error.

    If you're using this first script example, replace with a different URL.
    up
    -14
    hushuilong at gmail dot com
    13 years ago
    Simulate multiple threads request:
    <?php
    function multiple_threads_request($nodes){
                $mh = curl_multi_init();
                $curl_array = array();
            foreach(    $nodes as $i => $url)
            {
                    $curl_array[$i] = curl_init($url);
                    curl_setopt($curl_array[$i], CURLOPT_RETURNTRANSFER, true);
                    curl_multi_add_handle($mh, $curl_array[$i]);
            }
                $running = NULL;
            do {
                    usleep(10000);
                    curl_multi_exec($mh,$running);
            } while(    $running > 0);
           
                $res = array();
            foreach(    $nodes as $i => $url)
            {
                    $res[$url] = curl_multi_getcontent($curl_array[$i]);
            }
           
            foreach(    $nodes as $i => $url){
                    curl_multi_remove_handle($mh, $curl_array[$i]);
            }
                curl_multi_close($mh);       
            return     $res;
    }
    print_r(muti_thread_request(array(
            'http://www.example.com',
            'http://www.example.net',
    )));
    ?>
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