public function dk(){ $redis = new Redis(); $redis->connect('127.0.0.1', 6379); ///echo "Server is running: " . $redis->ping(); $key= $this->get_real_ip(); //var_dump($key); $limit = 2; $check = $redis->exists($key); if($check){ $redis->incr($key); $count = $redis->get($key); if($count > 2){ exit('请求太频繁,请稍后再试!'); } }else{ $redis->incr($key); //限制时间为60秒 $redis->expire($key,60); } $count = $redis->get($key); echo '第 '.$count.' 次请求'; } public function get_real_ip(){ static $realip; if(isset($_SERVER)){ if(isset($_SERVER['HTTP_X_FORWARDED_FOR'])){ $realip=$_SERVER['HTTP_X_FORWARDED_FOR']; }else if(isset($_SERVER['HTTP_CLIENT_IP'])){ $realip=$_SERVER['HTTP_CLIENT_IP']; }else{ $realip=$_SERVER['REMOTE_ADDR']; } }else{ if(getenv('HTTP_X_FORWARDED_FOR')){ $realip=getenv('HTTP_X_FORWARDED_FOR'); }else if(getenv('HTTP_CLIENT_IP')){ $realip=getenv('HTTP_CLIENT_IP'); }else{ $realip=getenv('REMOTE_ADDR'); } } return $realip; }