Memcache::delete

    (PECL memcache >= 0.2.0)

    Memcache::delete — Delete item from the server

    Опис

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

    Memcache::delete() deletes an item with the key.

    Параметри

    key

    The key associated with the item to delete.

    exptime

    This deprecated parameter is not supported, and defaults to 0 seconds. Do not use this parameter.

    Значення, що повертаються

    Повертає true у разі успіху або false в разі помилки.

    Журнал змін

    Версія Опис
    PECL memcache 3.0.5 The exptime is deprecated, and should not be supplied. Values other than 0 may cause unexpected errors.

    Приклади

    Приклад #1 Memcache::delete() example

    <?php

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

    /* item will be deleted by the server */
    memcache_delete($memcache_obj, 'key_to_delete');

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

    $memcache_obj->delete('key_to_delete');

    ?>

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    User Contributed Notes 5 notes

    up
    8
    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
    up
    4
    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
    1
    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
    0
    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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