eio_custom
(PECL eio >= 0.0.1dev)
eio_custom — Execute custom request like any other eio_* call
Beschreibung
eio_custom() executes custom function specified by
execute processing it just like any other eio_* call.
Parameter-Liste
-
execute -
Specifies the request function that should match the following prototype:
mixed execute(mixed data);callbackis event completion callback that should match the following prototype:void callback(mixed data, mixed result);datais the data passed toexecuteviadataargument without modificationsresultvalue returned byexecute -
pri -
The request priority:
EIO_PRI_DEFAULT,EIO_PRI_MIN,EIO_PRI_MAX, ornull. Ifnullpassed,priinternally is set toEIO_PRI_DEFAULT. -
callback -
callbackfunction is called when the request is done. It should match the following prototype:void callback(mixed $data, int $result[, resource $req]);-
data -
is custom data passed to the request.
-
result -
request-specific result value; basically, the value returned by corresponding system call.
-
req -
is optional request resource which can be used with functions like eio_get_last_error()
-
-
data -
Arbitrary variable passed to
callback.
Rückgabewerte
eio_custom() returns request resource on success,Bei einem Fehler wird false zurückgegeben..
Beispiele
Beispiel #1 eio_custom() example
<?php
/* Callback for the custom callback */
function my_custom_callback($data, $result) {
var_dump($data);
var_dump(count($result));
var_dump($result['data_modified']);
var_dump($result['result']);
}
/* The custom request */
function my_custom($data) {
var_dump($data);
$result = array(
'result' => 1001,
'data_modified' => "my custom data",
);
return $result;
}
$data = "my_custom_data";
$req = eio_custom("my_custom", EIO_PRI_DEFAULT, "my_custom_callback", $data);
var_dump($req);
eio_event_loop();
?>
Das oben gezeigte Beispiel erzeugt eine ähnliche Ausgabe wie:
resource(4) of type (EIO Request Descriptor) string(14) "my_custom_data" string(14) "my_custom_data" int(2) string(14) "my custom data" int(1001)
