Php+redis Cache Class

Php+redis Cache Class Class Rediscache { /** * $host: Redis server IP * $port: Redis server port * $lifetime: Cache file validity, in seconds * $cacheid: Cache file path, including file name */ Private $host; Private $port; Private $lifetime; Private $cacheid; Private $data; Public $redis; /** * destructor, check whether the cache directory is valid, default assignment */ function __construct ($lifetime =1800) { Configuration $this->host = "127.0.0.1"; $this->port = "6379"; $redis = new Redis (); $redis->pconnect ($this->host, $this->port); $this->redis= $redis; $this->cacheid = $this->getcacheid (); $this->lifetime = $lifetime; $this->data= $redis->hmget ($this->cacheid, Array (' content ', ' creattime ')); Print_r ($this->redis); Print_r ($this->data); } /** * Check if the cache is valid */ Private Function IsValid () { $data = $this->data; if (! $data [' content ']) return false; if (Time ()-$data [' Creattime '] > $this->lifetime) return false; return true; } /** * Write Cache * $mode = = 0, get page content in browser cache */ Public Function Write ($mode =0, $content = ") { Switch ($mode) { Case 0: $content = Ob_get_contents (); Break Default Break } Ob_end_flush (); try { $this->redis->hmset ($this->cacheid, Array (' content ' = $content, ' creattime ' =>time ())); $this->redis->expireat ($this->cacheid, Time () + $this->lifetime); } catch (Exception $e) { $this->error (' Write cache failed! '); } } /** * Load Cache * EXIT () to terminate the execution of the original page program after loading the cache, and run the original page program generation cache if the cache is invalid * Ob_start () Open browser cache to get page content at the end of the page */ Public function load () { if ($this->isvalid ()) { echo $this->data[' content '; Exit (); } else { Ob_start (); } } /** * Clear Cache */ Public Function Clean () { try { $this->redis->hdel ($this->cacheid, Array (' content ', ' creattime ')); } catch (Exception $e) { $this->error (' Purge cache failed! '); } } /** * Get cache file path */ Private Function Getcacheid () { return $this->dir.md5 ($this->geturl ()). $this->ext; } /** * Get the full URL of the current page */ Private Function Geturl () { $url = "; if (Isset ($_server[' Request_uri ')) { $url = $_server[' Request_uri '); } else { $url = $_server[' php_self '); $url. = Empty ($_server[' query_string ')? ': '? '. $_server[' query_string ']; } return $url; } /** * Output error message */ Private Function Error ($STR) { Echo '. $str. '; } } Usage: Require_once (' rediscache.php '); $cache = new Rediscache (10); Set Cache lifetime if ($_get[' ClearCache ')) $cache->clean (); else $cache->load (); Load cache, cache is valid do not execute the following page code Page code Start Page code End $cache->write (); First run or cache expiration, generating cache ?> Copy Code

PHP, Redis This topic was moved by Beckham on 2015-11-12 08:43

