The Memcache class

(PECL memcache >= 0.2.0)

Introduction

Represents a connection to a set of memcache servers.

Class synopsis

class Memcache {

add(
    string $key,
    mixed $var,
    int $flag = ?,
    int $expire = ?
): bool

addServer(
    string $host,
    int $port = 11211,
    bool $persistent = ?,
    int $weight = ?,
    int $timeout = ?,
    int $retry_interval = ?,
    bool $status = ?,
    callable $failure_callback = ?,
    int $timeoutms = ?
): bool

close(): bool

connect(string $host, int $port = ?, int $timeout = ?): bool

decrement(string $key, int $value = 1): int|false

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

flush(): bool

get(string $key, int &$flags = ?): string

getExtendedStats(string $type = ?, int $slabid = ?, int $limit = 100): array

getServerStatus(string $host, int $port = 11211): int

getStats(string $type = ?, int $slabid = ?, int $limit = 100): array|false

getVersion(): string|false

increment(string $key, int $value = 1): int|false

pconnect(string $host, int $port = ?, int $timeout = ?): mixed

replace(
    string $key,
    mixed $var,
    int $flag = ?,
    int $expire = ?
): bool

set(
    string $key,
    mixed $var,
    int $flag = ?,
    int $expire = ?
): bool

setCompressThreshold(int $threshold, float $min_savings = ?): bool

setServerParams(
    string $host,
    int $port = 11211,
    int $timeout = ?,
    int $retry_interval = false,
    bool $status = ?,
    callable $failure_callback = ?
): bool

}

Memcache::add — Add an item to the server
Memcache::addServer — Add a memcached server to connection pool
Memcache::close — Close memcached server connection
Memcache::connect — Open memcached server connection
Memcache::decrement — Decrement item's value
Memcache::delete — Delete item from the server
Memcache::flush — Flush all existing items at the server
Memcache::get — Retrieve item from the server
Memcache::getExtendedStats — Get statistics from all servers in pool
Memcache::getServerStatus — Returns server status
Memcache::getStats — Get statistics of the server
Memcache::getVersion — Return version of the server
Memcache::increment — Increment item's value
Memcache::pconnect — Open memcached server persistent connection
Memcache::replace — Replace value of the existing item
Memcache::set — Store data at the server
Memcache::setCompressThreshold — Enable automatic compression of large values
Memcache::setServerParams — Changes server parameters and status at runtime

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User Contributed Notes 1 note

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chris at NOSPAM dot xeneco dot co dot uk ¶

11 years ago

It helps to know that for this extension to work, you need a server with 'Memcached' (a service independent of PHP) installed and running as a service.

The documentation herein refers a lot to 'memcache_host'. This is not an arbitrary string, but should be a host name (eg localhost) or an IP address of a server running memcached.

If you have just installed the php memcache extension then you will not necessarily have memcached installed as well