来自 技术 2019-04-17 00:00 的文章

PHP访问数据缓存处理

本文讲述的是PHP访问数据缓存处理,利用Redis或Memcache作为MySQL的缓存,采用是ThinkPHP框架。

方法一采用ThinkPHP的S方法:

$savedata['uid']=session('uid');$savedata['ip']=$_SERVER['REMOTE_ADDR']; $savedata['url']=$_SERVER['REQUEST_URI']; $savedata['created_time']=time();$savedata['created_by']=session('uid');$cache = S(array('type'=>'redis','host'=>'127.0.0.1','port'=>'6379','prefix'=>'think','expire'=>600000));// 获取缓存$visitor_data = $cache->visitor_data;if(empty($visitor_data)){ $visitor_data=array();}array_push($visitor_data, $savedata);// 设置缓存$cache->visitor_data = $visitor_data;if(count($visitor_data)>3){ foreach ($visitor_data as $key => $value) {  $m = M("VisitorLog"); $m->add($value); } // 删除缓存 unset($cache->visitor_data);}


方法二采用Redis

$savedata['uid']=session('uid');$savedata['ip']=$_SERVER['REMOTE_ADDR']; $savedata['url']=$_SERVER['REQUEST_URI']; $savedata['created_time']=time();$savedata['created_by']=session('uid');// 连接本地的 Redis 服务$redis = new \Redis();$redis->connect('127.0.0.1', 6379);//查看服务是否运行if(empty($redis)){ return dataResult(null,'',0); }//存储数据到列表中$redis->lpush("visitor_data",json_encode($savedata));// 获取存储的数据并输出$len=$redis->llen("visitor_data");if($len>2){ $visitor_data = $redis->lrange("visitor_data",0,$len); foreach ($visitor_data as $key => $value) { $m = M("VisitorLog"); $m->add(json_decode($value,true)); } $redis->del("visitor_data");}

方法三采用Memcache:

$savedata['uid']=session('uid');$savedata['ip']=$_SERVER['REMOTE_ADDR']; $savedata['url']=$_SERVER['REQUEST_URI']; $savedata['created_time']=time();$savedata['created_by']=session('uid');$memcache = new \Memcache; //创建一个memcache对象$memcache->connect('127.0.0.1', 11211) or die ("Could not connect"); //连接Memcached服务器$visitor_data = $memcache->get('visitor_data'); //从内存中取出key的值if(empty($visitor_data)){ $visitor_data=array();}if(count($visitor_data)>2){ foreach ($visitor_data as $key => $value) { $m = M("VisitorLog"); $m->add($value); } unset($visitor_data); $visitor_data=array();}array_push($visitor_data,$savedata);$memcache->set('visitor_data', $visitor_data); //设置一个变量到内存中,名称是key 值是test

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