PHP Operation Redis Caching method

  ObjectPrivate $sId = 1; Servier Service ID Private $con = null;//Link Resource/** * Initialize Redis * * @return Object */Public function __constr UCT () {if (!class_exists (' Redis ')) {throw new QException(' PHP extension does not exist:redis ');  } $this->redis = new Redis ();  }/** * Link MEMCAHCE service * * @access private * @param string $key keyword * @param string $value Cache contents * @return Array */Private Function Connect ($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 Select if (! $server [$sid]) {throw new QException(' The cache server configuration file for the current operation 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 $value Cache contents * @return Arra    Y */Public function set ($key, $value, $sid, $expire = 0) {$data = $this->get ($key, $SID);//If a key value already exists    if ($data) {return $this->redis->getset ($key, $value);    } else {return $this->redis->set ($key, $value); }}/** * Read Cache * * @access private * @param string $key keyword * @param int $sid Select memcache Server * @re    Turn array */Public function get ($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->co    Nnect ();  return $this->redis->flushall (); }/** * Delete cache * * @access private * @param string $key keyword * @param int $sid Select memcache Server * @return AR Ray  */Public Function remove ($key, $sid) {$this->connect ();  return $this->redis->del ($key); }/** * destructor * Last Close memcache */Public Function __destruct () {if ($this->redis) {$this->redi    S->close (); }  }}

The above describes the PHP operation of the Redis cache method, including Require,exception, object aspects of the content, I hope that the PHP tutorial interested in a friend helpful.

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