PHP 5.4.31 Released

Memcached::set

(PECL memcached >= 0.1.0)

Memcached::setStore an item

Descrição

public bool Memcached::set ( string $key , mixed $value [, int $expiration ] )

Memcached::set() stores the value on a memcache server under the specified key. The expiration parameter can be used to control when the value is considered expired.

The value can be any valid PHP type except for resources, because those cannot be represented in a serialized form. If the Memcached::OPT_COMPRESSION option is turned on, the serialized value will also be compressed before storage.

Parâmetros

key

A chave sobre a qual guardar o valor.

value

O valor para guardar.

expiration

O tempo de expiração, padrão é 0. Veja Tempos de Expiração para maiores informações.

Valor Retornado

Retorna TRUE em caso de sucesso ou FALSE em caso de falha. Use Memcached::getResultCode() se necessário.

Exemplos

Exemplo #1 Memcached::set() example

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

$m->set('int'99);
$m->set('string''a simple string');
$m->set('array', array(1112));
/* expire 'object' key in 5 minutes */
$m->set('object', new stdclasstime() + 300);


var_dump($m->get('int'));
var_dump($m->get('string'));
var_dump($m->get('array'));
var_dump($m->get('object'));
?>

O exemplo acima irá imprimir algo similar à:

int(99)
string(15) "a simple string"
array(2) {
  [0]=>
  int(11)
  [1]=>
  int(12)
}
object(stdClass)#1 (0) {
}

Veja Também

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User Contributed Notes 3 notes

up
1
Matthew Minix
8 months ago
Unlike Memcache, Memcached will not replace spaces in keys with underscores for you, and will instead send the key as provided which will cause an error that can result in keys and values being mismatched.  You can avoid this problem by removing/replacing spaces before storage or setting the option Memcached::OPT_BINARY_PROTOCOL to true.
up
1
miha at hribar dot info
5 years ago
The method correctly returns false if you set the value to false. This means that in order to have proper fault checking mechanism in place you need to check the result code.

<?php
$Memcached
= new Memcached();
$Memcached->addServer('localhost', 11211);
$Memcached->set('key', false);
var_dump($Memcached->get('key'));      // boolean false
var_dump($Memcached->getResultCode()); // int 0 which is  Memcached::RES_SUCCESS 
?>
up
0
Anonymous
4 months ago
00 = MEMCACHED_SUCCESS
01 = MEMCACHED_FAILURE
02 = MEMCACHED_HOST_LOOKUP_FAILURE // getaddrinfo() and getnameinfo() only
03 = MEMCACHED_CONNECTION_FAILURE
04 = MEMCACHED_CONNECTION_BIND_FAILURE // DEPRECATED see MEMCACHED_HOST_LOOKUP_FAILURE
05 = MEMCACHED_WRITE_FAILURE
06 = MEMCACHED_READ_FAILURE
07 = MEMCACHED_UNKNOWN_READ_FAILURE
08 = MEMCACHED_PROTOCOL_ERROR
09 = MEMCACHED_CLIENT_ERROR
10 = MEMCACHED_SERVER_ERROR // Server returns "SERVER_ERROR"
11 = MEMCACHED_ERROR // Server returns "ERROR"
12 = MEMCACHED_DATA_EXISTS
13 = MEMCACHED_DATA_DOES_NOT_EXIST
14 = MEMCACHED_NOTSTORED
15 = MEMCACHED_STORED
16 = MEMCACHED_NOTFOUND
17 = MEMCACHED_MEMORY_ALLOCATION_FAILURE
18 = MEMCACHED_PARTIAL_READ
19 = MEMCACHED_SOME_ERRORS
20 = MEMCACHED_NO_SERVERS
21 = MEMCACHED_END
22 = MEMCACHED_DELETED
23 = MEMCACHED_VALUE
24 = MEMCACHED_STAT
25 = MEMCACHED_ITEM
26 = MEMCACHED_ERRNO
27 = MEMCACHED_FAIL_UNIX_SOCKET // DEPRECATED
28 = MEMCACHED_NOT_SUPPORTED
29 = MEMCACHED_NO_KEY_PROVIDED /* Deprecated. Use MEMCACHED_BAD_KEY_PROVIDED! */
30 = MEMCACHED_FETCH_NOTFINISHED
31 = MEMCACHED_TIMEOUT
32 = MEMCACHED_BUFFERED
33 = MEMCACHED_BAD_KEY_PROVIDED
34 = MEMCACHED_INVALID_HOST_PROTOCOL
35 = MEMCACHED_SERVER_MARKED_DEAD
36 = MEMCACHED_UNKNOWN_STAT_KEY
37 = MEMCACHED_E2BIG
38 = MEMCACHED_INVALID_ARGUMENTS
39 = MEMCACHED_KEY_TOO_BIG
40 = MEMCACHED_AUTH_PROBLEM
41 = MEMCACHED_AUTH_FAILURE
42 = MEMCACHED_AUTH_CONTINUE
43 = MEMCACHED_PARSE_ERROR
44 = MEMCACHED_PARSE_USER_ERROR
45 = MEMCACHED_DEPRECATED
46 = MEMCACHED_IN_PROGRESS
47 = MEMCACHED_SERVER_TEMPORARILY_DISABLED
48 = MEMCACHED_SERVER_MEMORY_ALLOCATION_FAILURE
49 = MEMCACHED_MAXIMUM_RETURN /* Always add new error code before */
11 = MEMCACHED_CONNECTION_SOCKET_CREATE_FAILURE = MEMCACHED_ERROR
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