(PECL memcache >= 0.2.0)
Memcache::connect — Open memcached server connection
$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.
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.
      
portPoint 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.
      
timeoutValue 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.
    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.
   
   Gibt bei Erfolg TRUE zurück. Im Fehlerfall wird FALSE zurückgegeben.
  
Beispiel #1 Memcache::connect() example
<?php
/* procedural API */
$memcache_obj = memcache_connect('memcache_host', 11211);
/* OO API */
$memcache = new Memcache;
$memcache->connect('memcache_host', 11211);
?>