Runtime Configuration

The behaviour of these functions is affected by
settings in php.ini.

For further details and definitions of the PHP_INI_* modes, see the
Where a
configuration setting may be set.

Here’s a short explanation of the configuration
directives.

memcache.allow_failover boolean

Whether to transparently failover to other servers
on errors.

memcache.max_failover_attempts integer

Defines how many servers to try when setting and
getting data. Used only in conjunction with
memcache.allow_failover.

memcache.chunk_size integer

Data will be transferred in chunks of this size,
setting the value lower requires more network writes. Try
increasing this value to 32768 if noticing otherwise inexplicable
slowdowns.

memcache.default_port string

The default TCP port number to use when connecting
to the memcached server if no other port is specified.

memcache.hash_strategy string

Controls which strategy to use when mapping keys to
servers. Set this value to consistent to enable consistent
hashing which allows servers to be added or removed from the pool
without causing keys to be remapped. Setting this value to
standard results in the old strategy being used.

memcache.hash_function string

Controls which hash function to apply when mapping
keys to servers, crc32 uses the standard CRC32 hash while
fnv uses FNV-1a.

session.save_handler string

Use memcache as a session handler by setting this
value to memcache.

session.save_path string

Defines a comma separated of server urls to use for
session storage, for example “tcp://host1:11211,
tcp://host2:11211”.

Each url may contain parameters which are applied
to that server, they are the same as for the Memcache::addServer() method. For example
“tcp://host1:11211?persistent=1&weight=1&timeout=1&retry_interval=15”

memcache.protocol string

memcache.redundancy integer

memcache.session_redundancy integer

memcache.compress_threshold integer

memcache.lock_timeout integer