core\session\memcached Class Reference

Memcached based session handler. More...

Inheritance diagram for core\session\memcached:

Public Member Functions
	__construct ()
	Create new instance of handler.
	abort ()
	Release lock on the session without writing it.
	init ()
	Init session handler.
	kill_all_sessions ()
	Kill all active sessions, the core sessions table is purged afterwards.
	kill_session ($sid)
	Kill one session, the session record is removed afterwards.
	requires_write_lock ()
	Has this session been opened with a writelock? Your handler should call this during start() if you support read-only sessions.
	session_exists ($sid)
	Check the backend contains data for this session id.
	set_requires_write_lock ($requireswritelock)
	This is called after init() and before start() to indicate whether the session opened should be writable or not.
	start ()
	Start the session.
	write_close ()
	Write the session and release lock.

Static Protected Member Functions
static	connection_string_to_memcache_servers (string $str)
	Convert a connection string to an array of servers.

Protected Attributes
int	$acquiretimeout = 120
	$acquiretimeout how long to wait for session lock
int	$lockexpire = 7200
	$lockexpire how long to wait before expiring the lock so that other requests may continue execution, ignored if PECL memcached is below version 2.2.0.
integer	$lockretrysleep = 150
	$lockretrysleep Used for memcached 3.x (PHP7), the amount of time to sleep between attempts to acquire the session lock.
string	$prefix
	$prefix session key prefix
boolean	$requireswritelock = false
	$requireswritelock does the session need and/or have a lock?
string	$savepath
	$savepath save_path string
array	$servers
	$servers list of servers parsed from save_path

Detailed Description

Memcached based session handler.

Copyright

2013 Petr Skoda

License

http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

Member Function Documentation

abort()

core\session\handler::abort ( )

inherited

Release lock on the session without writing it.

May not be possible in older versions of PHP. If so, session may be written anyway so that any locks are released.

connection_string_to_memcache_servers()

static core\session\memcached::connection_string_to_memcache_servers ( string $str )

staticprotected

Convert a connection string to an array of servers.

"abc:123, xyz:789" to [ ['abc', '123'], ['xyz', '789'], ]

Parameters

string

$str

save_path value containing memcached connection string

Return values

array[]

init()

core\session\memcached::init

(

)

Init session handler.

Reimplemented from core\session\handler.

kill_all_sessions()

core\session\memcached::kill_all_sessions

(

)

Kill all active sessions, the core sessions table is purged afterwards.

Reimplemented from core\session\handler.

kill_session()

core\session\memcached::kill_session

(

$sid

)

Kill one session, the session record is removed afterwards.

Parameters

string

$sid

Reimplemented from core\session\handler.

requires_write_lock()

core\session\handler::requires_write_lock ( )

inherited

Has this session been opened with a writelock? Your handler should call this during start() if you support read-only sessions.

Return values

bool	true if session is intended to have a write lock.

session_exists()

core\session\memcached::session_exists

(

$sid

)

Check the backend contains data for this session id.

Note: this is intended to be called from manager\session_exists() only.

Parameters

string

$sid

Return values

bool	true if session found.

Reimplemented from core\session\handler.

set_requires_write_lock()

core\session\handler::set_requires_write_lock ( $requireswritelock )

inherited

This is called after init() and before start() to indicate whether the session opened should be writable or not.

This is intentionally captured even if your handler doesn't support non-locking sessions, so that behavior (upon session close) matches closely between handlers.

Parameters

bool

$requireswritelock

true if needs to be open for writing

start()

core\session\memcached::start

(

)

Start the session.

Return values

bool

success

Reimplemented from core\session\handler.

write_close()

core\session\handler::write_close ( )

inherited

Write the session and release lock.

If the session was not intentionally opened with a write lock, then we will abort the session instead if able.

Member Data Documentation

$lockretrysleep

integer core\session\memcached::$lockretrysleep = 150

protected

$lockretrysleep Used for memcached 3.x (PHP7), the amount of time to sleep between attempts to acquire the session lock.

Mimics the deprecated config memcached.sess_lock_wait.

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The documentation for this class was generated from the following file:

• lib/classes/session/memcached.php