Memcache
PHP Manual

Memcache::connect

Open memcached server connection

Description

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

Memcache::connect establishes a connection to the memcached server. The connection, which was opened using Memcache::connect will be automatically closed at the end of script execution. Also you can close it with Memcache::close. Also you can use memcache_connect function.

Parameters

host

Point to the host where memcached is listening for connections. This parameter may also specify other transports like unix:///path/to/memcached.sock to use UNIX domain sockets, in this case port must also be set to 0.

port

Point to the port where memcached is listening for connections. Set this parameter to 0 when using UNIX domain sockets.

Please note: port defaults to memcache.default_port if not specified. For this reason it is wise to specify the port explicitly in this method call.

timeout

Value in seconds which will be used for connecting to the daemon. Think twice before changing the default value of 1 second - you can lose all the advantages of caching if your connection is too slow.

Return Values

Returns true on success or false on failure.

Examples

Example #1 Memcache::connect example

<?php

/* procedural API */

$memcache_obj = memcache_connect('memcache_host', 11211);

/* OO API */

$memcache = new Memcache;
$memcache->connect('memcache_host', 11211);

?>

Notes

Warning

When the port is unspecified, this method defaults to the value set of the PHP ini directive memcache.default_port If this value was changed elsewhere in your application it might lead to unexpected results: for this reason it is wise to always specify the port explicitly in this method call.

See Also

  • Memcache::pconnect
  • Memcache::close