PHP 8.4.0 RC2 available for testing

Memcache::delete

(PECL memcache >= 0.2.0)

Memcache::deleteElimina un valor del servidor

Descripción

Memcache::delete(string $key, int $timeout = 0): bool

Memcache::delete() elimina el valor según la clave key.

Parámetros

key

La clave asociada con el valor a eliminar.

timeout

Este parámetro ya no está soportado, y su valor por omisión es 0 segundos. No se debe usar este parámetro.

Historial de cambios

Versión Descripción
Desconocido No se recomienda utilizar el parámetro timeout. Su comportamiento no es consistente entre las versiones de memcached, pero sí es seguro utilizar 0. El uso de otros valores puede provocar que la función delete de memcache falle.

Valores devueltos

Devuelve true en caso de éxito o false en caso de error.

Ejemplos

Ejemplo #1 Ejemplo de Memcache::delete()

<?php

/* API por procedimientos */
$memcache_obj = memcache_connect('memcache_host', 11211);

/* el valor será eliminado por el servidor */
memcache_delete($memcache_obj, 'key_to_delete');

/* API OO */
$memcache_obj = new Memcache;
$memcache_obj->connect('memcache_host', 11211);

$memcache_obj->delete('key_to_delete');

?>

Ver también

add a note

User Contributed Notes 5 notes

up
6
nibblebot at gmail dot com
14 years ago
the Memcache::delete(key) function is broken on several combinations of memcached+pecl-memcache combinations.

pecl-memcache 2.2.5 + memcached 1.4.2 - Memcache::delete(key) WORKS

pecl-memcache 2.2.5 + memcached 1.4.3 - Memcache::delete(key) DOES NOT WORK

pecl-memcache 2.2.5 + memcached 1.4.4 - Memcache::delete(key) WORKS

pecl-memcache 2.2.5 + memcached 1.4.5 - Memcache::delete(key) WORKS

pecl-memcache 3.0.4 + memcached 1.4.2 - Memcache::delete(key) WORKS

pecl-memcache 3.0.4 + memcached 1.4.3 - Memcache::delete(key) DOES NOT WORK

pecl-memcache 3.0.4 + memcached 1.4.4 - Memcache::delete(key) DOES NOT WORK

pecl-memcache 3.0.4 + memcached 1.4.5 - Memcache::delete(key) DOES NOT WORK
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3
vbaspcppguy at gmail dot com
14 years ago
According to the documents, $timeout is not required, but for me if I did not include it regardless of value, it fired an error. I made a simple fix for it.

<?php
class memcache_tools extends memcache
{
public function
delete($key, $expire=0)
{
parent::delete($key, $expire);
}
}
?>

This will force it to behave as it should regardless of version.
up
0
me at adamhahn dot com
12 years ago
I could not get the delete to work properly, so I ended up trying the 'set' method and setting the timeout value to -1.

<?php
$memcache
->set('index', 'deleted', 0, -1);
?>

It solved my problem with the delete method.

(using memcached 1.4.5 and pecl-memcache 3.0.6)
up
-1
padys
11 years ago
In my case this code does NOT work:
<?php
$memcache
->set('index', 'deleted', 0, -1);
?>
because of expire == -1.

I set expire = 1 (and I prefer "replace"):
<?php
$memcache
->replace('index', '', 0, 1);
?>
up
-4
Anonymous
14 years ago
Regardless of whether or not it succeeds, for me on Ubuntu 10.04 it always returns false. Just an FYI, you can't seem to rely on the result.
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