php控制访问人数的方法

php控制访问人数的方法

//添加访问人数
 public function addfangwen()
    {
        header("Content-type:text/html;charset=utf-8");
        $redis = \RedisClient::getInstance();
        $moban_fangwen = $redis->get('gheliceshi1_fangwen');
        if ($moban_fangwen >= 10) {
            echo '<script>alert("访问人数过多,请稍后访问")</script>';
            exit();
        }else{
            $redis->incr('gheliceshi1_fangwen');
        }
    }
//减少访问人数
   public function jianshaofangwen()
    {
        $redis = \RedisClient::getInstance();
        $redis->decr('gheliceshi1_fangwen');
        if ($redis->get('gheliceshi1_fangwen') <= 0) {
            $redis->set('gheliceshi1_fangwen', 0);
        }
        print_r($redis->get('gheliceshi1_fangwen'));
        exit();
    }

网站入口写

addfangwen();

还有js初始化的时候要长连接 swoole

swoole

$server->on('close', function ($ser, $fd) {

    $redis = \RedisClient::getInstance();
    $redis->decr('gheliceshi1_fangwen');
    if ($redis->get('gheliceshi1_fangwen') <= 0) {
        $redis->set('gheliceshi1_fangwen', 0);
    }

});

关闭浏览器自然就是断开连接了 用下面方法减少人数

jianshaofangwen();

这样就可以使用贷款了 不怕不够用了