Memcached::setOption

(PECL memcached >= 0.1.0)

Memcached::setOptionSet a Memcached option

Beschreibung

public Memcached::setOption(int $option, mixed $value): bool

This method sets the value of a Memcached option. Some options correspond to the ones defined by libmemcached, and some are specific to the extension.

Parameter-Liste

option

One of the Memcached::OPT_* constant. See Memcached Constants for more information.

value

The value to be set.

Hinweis:

The options listed below require values specified via constants.

  • Memcached::OPT_HASH requires Memcached::HASH_* values.
  • Memcached::OPT_DISTRIBUTION requires Memcached::DISTRIBUTION_* values.

Rückgabewerte

Gibt bei Erfolg true zurück. Bei einem Fehler wird false zurückgegeben.

Beispiele

Beispiel #1 Setting a Memcached option

<?php
$m
= new Memcached();
var_dump($m->getOption(Memcached::OPT_HASH) == Memcached::HASH_DEFAULT);
$m->setOption(Memcached::OPT_HASH, Memcached::HASH_MURMUR);
$m->setOption(Memcached::OPT_PREFIX_KEY, "widgets");
echo
"Prefix key is now: ", $m->getOption(Memcached::OPT_PREFIX_KEY), "\n";
?>

Das oben gezeigte Beispiel erzeugt folgende Ausgabe:

bool(true)
Prefix key is now: widgets

Siehe auch

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User Contributed Notes 1 note

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Harry Fuecks
13 years ago
Be warned that setting the option Memcached::OPT_DISTRIBUTION to Memcached::DISTRIBUTION_CONSISTENT can carry a significant performance hit so is best used with persistent connections. More details at http://github.com/andreiz/php-memcached/issues#issue/14
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