Memcached
PHP Manual

Memcached::prepend

(PECL memcached >= 0.1.0)

Memcached::prepend — Prepend data to an existing item

Descripción

public bool Memcached::prepend ( string $key , string $value )

Memcached::prepend() prepends the given value string to the value of an existing item. The reason that value is forced to be a string is that prepending mixed types is not well-defined.

Note: If the Memcached::OPT_COMPRESSION is enabled, the operation will fail and a warning will be issued, because prepending compressed data to a value that is potentially already compressed is not possible.

Lista de parámetros

key

The key of the item to prepend the data to.

value

The string to prepend.

Valores retornados

Devuelve TRUE si todo se llevó a cabo correctamente, FALSE en caso de fallo. The Memcached::getResultCode will return Memcached::RES_NOTSTORED if the key does not exist.

Ejemplos

Example #1 Memcached::prepend() example

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

$m->set('foo', 'abc');
$m->prepend('foo', 'def');
var_dump($m->get('foo'));
?>

El resultado del ejemplo seria:

string(6) "defabc"

Ver también

Memcached
PHP Manual