本文实例讲述了PHP使用redis实现统计缓存mysql压力的方法。分享给大家供大家参考，具体如下：
<?php header("Content-Type:text/html;charset=utf-8"); include "lib/mysql.class.php"; $mysql_obj = mysql::getConn(); //redis $redis = new Redis(); $redis->pconnect("127.0.0.1", 6379); if(isset($_SERVER["HTTP_REFERER"])){ $url_md5 = md5($_SERVER["HTTP_REFERER"]); } $adve_key = "adve"; $adve_key_exists = "adve_exists"; if(!$redis->exists($adve_key_exists)){ $list = $mysql_obj->fetch_array("select * from user_online_adve"); if($list){ foreach ($list as $key => $value) { $url_hash = md5($value["adve_url"]); $adve_hash_key = $adve_key.":".$url_hash; $id = $value["id"]; $redis->set($adve_hash_key,$id); $redis->set($adve_key_exists,true); //$redis->hmset($adve_hash_key, array("id" =>$id)); //print_r($redis->get($adve_hash_key)); } } } $adve_new_key = $adve_key.":".$url_md5; if($redis->exists($adve_new_key)){ $adve_plus = $adve_new_key.":plus" ; if(!$redis->exists($adve_plus)){ $redis->set($adve_plus,1); }else{ $redis->incr($adve_plus); $num = $redis->get($adve_plus); if($num >10){ $id = $redis->get($adve_new_key); // insert to sql; $mysql_obj->query("update user_online_adve set adve_num=adve_num+$num where id=$id"); $redis->set($adve_plus,1); } } } header("HTTP/1.0 301 Moved Permanently"); header("Location: https://itunes.apple.com/cn/app/san-guo-zhi15-ba-wangno-da-lu/id694974270?mt=8");/* if(){ $adve_plus = $adve_key.":plus" ; if($redis->exists($adve_plus)){ $redis->incr($adve_plus); }else{ $redis->set($adve_plus,1); } echo $redis->get($adve_plus); } foreach ($list as $key => $value) { $url_hash = md5($value["adve_url"]); $id = $value["id"]; $adve_num = $value["adve_num"]; $adve_plus = $adve_key.":plus" ; if($redis->exists($adve_plus)){ $redis->incr($adve_plus); }else{ $redis->set($adve_plus,1); } echo $redis->get($adve_plus); //if($redis->) //$redis->hmset($adve_key, array("id" =>$id, "adve_num"=>$adve_num)); //print_r($redis->hmget("adve:$url_hash", array("adve_num"))); } print_r($list);*/希望本文所述对大家php程序设计有所帮助。
