How php operates redis Cache

How php operates redis Cache

In addition to memcache, a commonly used php operation class library, we may also be very familiar with memory cache, Which is redis. We will share this php technical article with you, this is about how to use php to operate the redis memory cache tool library.

Php redis cache operations

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<? Php /** * Redis cache operations * @ Author hxm * @ Version 1.0 * @ Since 2015.05.04 */ Class RCache extends Object implements CacheFace { Private $ redis = null; // redis object   Private $ sId = 1; // servier service ID   Private $ con = null; // link resource   /** * Initialize Redis * * @ Return Object */ Public function _ construct () { If (! Class_exists ('redis ')) { Throw new QException ('php extension does not exist: redis '); } $ This-> redis = new Redis (); }   /** * Link to the memcahce Service * * @ Access private * @ Param string $ key keyword * @ Param string $ value cached content * @ Return array */ 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; // memcache Service Selection If (! $ Server [$ sid]) { Throw new QException ('the current cache server configuration file does not exist '); } $ Host = $ server [$ sid] ['host']; $ Port = $ server [$ sid] ['Port']; Try { $ This-> redis-> 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 already exists If ($ data) { Return $ this-> redis-> getset ($ key, $ value ); } Else { Return $ this-> redis-> set ($ key, $ value ); } }   /** * 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 $ this-> redis-> get ($ key ); }   /** * Clean (delete) all elements that have been stored * * @ Access private * @ Return array */ Public function flush () { $ This-> connect (); Return $ this-> redis-> flushall (); } /** * 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-> redis-> del ($ key ); }   /** * Destructor * Disable memcache. */ Public function _ destruct () { If ($ this-> redis) { $ This-> redis-> close (); } } }

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