[edit] Last updated: Fri, 23 Mar 2012

Memcached::getDelayed

(PECL memcached >= 0.1.0)

Memcached::getDelayed — Request multiple items

Opis

public bool Memcached::getDelayed ( array $keys [, bool $with_cas [, callable $value_cb ]] )

Memcached::getDelayed() issues a request to memcache for multiple items the keys of which are specified in the keys array. The method does not wait for response and returns right away. When you are ready to collect the items, call either Memcached::fetch() or Memcached::fetchAll(). If with_cas is true, the CAS token values will also be requested.

Instead of fetching the results explicitly, you can specify a result callback via value_cb parameter.

Parametry

keys: Array of keys to request.
with_cas: Whether to request CAS token values also.
value_cb: The result callback or NULL.

Zwracane wartości

Zwraca TRUE w przypadku powodzenia, FALSE w przypadku błędu. Użyj Memcached::getResultCode(), jeśli to konieczne.

Przykłady

Przykład #1 Memcached::getDelayed() example


<?php
$m = new Memcached();
$m->addServer('localhost', 11211);

$m->set('int', 99);
$m->set('string', 'a simple string');
$m->set('array', array(11, 12));

$m->getDelayed(array('int', 'array'), true);
var_dump($m->fetchAll());
?>

Powyższy przykład wyświetli:

array(2) {
  [0]=>
  array(3) {
    ["key"]=>
    string(3) "int"
    ["value"]=>
    int(99)
    ["cas"]=>
    float(2363)
  }
  [1]=>
  array(3) {
    ["key"]=>
    string(5) "array"
    ["value"]=>
    array(2) {
      [0]=>
      int(11)
      [1]=>
      int(12)
    }
    ["cas"]=>
    float(2365)
  }
}

Zobacz też:

Memcached::getDelayedByKey() - Request multiple items from a specific server
Memcached::fetch() - Fetch the next result
Memcached::fetchAll() - Fetch all the remaining results

add a note User Contributed Notes Memcached::getDelayed

antmat at mail dot ru 18-Feb-2011 08:16


Actually, when you pass a callback, method doesn't return immediately, but waits for results and calls callback function.

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