EventHttp::setCallback

    (PECL event >= 1.4.0-beta)

    EventHttp::setCallback — Sets a callback for specified URI

    Description

    publicEventHttp::setCallback(string$path, string$cb, string$arg = ?): void

    Sets a callback for specified URI.

    Parameters

    path

    The path for which to invoke the callback.

    cb

    The callback callable that gets invoked on requested path . It should match the following prototype:

    callback(EventHttpRequest$req = NULL, mixed$arg = NULL): void

    req

    EventHttpRequest object.

    arg

    Custom data.

    arg

    Custom data.

    Return Values

    Returns true on success or false on failure.

    Examples

    Example #1 EventHttp::setCallback() example

    <?php


    function _http_dump($req, $data) {
    static     $counter = 0;
    static     $max_requests = 2;

    if (++    $counter >= $max_requests) {
    echo     "Counter reached max requests $max_requests. Exiting\n";
    exit();
    }

    echo     __METHOD__, " called\n";
    echo     "request:"; var_dump($req);
    echo     "data:"; var_dump($data);

    echo     "\n===== DUMP =====\n";
    echo     "Command:", $req->getCommand(), PHP_EOL;
    echo     "URI:", $req->getUri(), PHP_EOL;
    echo     "Input headers:"; var_dump($req->getInputHeaders());
    echo     "Output headers:"; var_dump($req->getOutputHeaders());

    echo     "\n >> Sending reply ...";
    $req->sendReply(200, "OK");
    echo     "OK\n";

    echo     "\n >> Reading input buffer ...\n";
    $buf = $req->getInputBuffer();
    while (    $s = $buf->readLine(EventBuffer::EOL_ANY)) {
    echo     $s, PHP_EOL;
    }
    echo     "No more data in the buffer\n";
    }

    function     _http_about($req) {
    echo     __METHOD__, PHP_EOL;
    echo     "URI: ", $req->getUri(), PHP_EOL;
    echo     "\n >> Sending reply ...";
    $req->sendReply(200, "OK");
    echo     "OK\n";
    }

    function     _http_default($req, $data) {
    echo     __METHOD__, PHP_EOL;
    echo     "URI: ", $req->getUri(), PHP_EOL;
    echo     "\n >> Sending reply ...";
    $req->sendReply(200, "OK");
    echo     "OK\n";
    }

    $port = 8010;
    if (    $argc > 1) {
    $port = (int) $argv[1];
    }
    if (    $port <= 0 || $port > 65535) {
    exit(    "Invalid port");
    }

    $base = new EventBase();
    $http = new EventHttp($base);
    $http->setAllowedMethods(EventHttpRequest::CMD_GET | EventHttpRequest::CMD_POST);

    $http->setCallback("/dump", "_http_dump", array(4, 8));
    $http->setCallback("/about", "_http_about");
    $http->setDefaultCallback("_http_default", "custom data value");

    $http->bind("0.0.0.0", 8010);
    $base->loop();
    ?>

    The above example will output something similar to:

    a=12 HTTP/1.0 200 OK Content-Type: text/html; charset=ISO-8859-1 Connection: close

    See Also

    To Top