Basic php Method for operating memcache cache, phpmemcache

Basic php Method for operating memcache cache, phpmemcache
How to operate memcache in php


To use memcache, you must configure the memcahche environment on the server! After confirming that memcahce can be connected normally, it can be used in the program!

<? Php/*** Memcache cache operation * @ update http://www.lai18.com */class MCache extends Object implements CacheFace {private $ mem = null; // Mem Object private $ sId = 1; // servier service ID/*** initialize Memcache ** @ return Object */public function _ construct () {if (! Class_exists ('memcache') {throw new QException ('php extension does not exist: memcache') ;}$ this-> mem = new Memcache ();} /*** link memcahce service ** @ access private * @ param string $ key keyword * @ param string $ value cached content * @ return array * @ update http://www.lai18.com */private function connect ($ sid) {$ file = $ this-> CacheFile (); require $ file; if (! Isset ($ cache) {throw new QException ('cache configuration file does not exist '. $ file) ;}$ server = $ cache [$ this-> cacheId]; $ sid = isset ($ sid) = 0? $ This-> sId: $ sid; // select if (! $ Server [$ sid]) {throw new QException ('current cache server configuration file does not exist');} $ host = $ server [$ sid] ['host']; $ port = $ server [$ sid] ['Port']; try {$ this-> mem-> connect ($ host, $ port);} catch (Exception $ e) {exit ('memecache connection failed, error message :'. $ e-> getMessage ());}} /*** write cache ** @ access private * @ param string $ key keyword * @ param string $ value cached content * @ return array */public function set ($ key, $ value, $ sid, $ expire = 0) {$ data = $ this-> get ($ key, $ sid); // if the key value if ($ data) already exists) {return $ this-> mem-> set ($ key, $ value, MEMCACHE_COMPRESSED, $ expire);} else {return $ this-> mem-> add ($ key, $ value, MEMCACHE_COMPRESSED, $ expire );}} /*** read cache ** @ access private * @ param string $ key keyword * @ param int $ sid select the number of memcache servers * @ return array */public function get ($ key, $ sid) {$ this-> connect ($ sid); return $ t His-> mem-> get ($ key);}/*** clean (delete) all elements that have been stored ** @ access private * @ return array */public function flush () {$ this-> connect (); return $ this-> mem-> flush ();} /*** Delete cache ** @ access private * @ param string $ key keyword * @ param int $ sid select the number of memcache servers * @ return array */public function remove ($ key, $ sid) {$ this-> connect (); return $ this-> mem-> delete ($ key );} /* destructor * finally disable memcache */public fun Ction _ destruct () {/* if (! $ This-> mem) {$ this-> mem-> close ();}*/}}