<?php

include('lib.php');

if(isLogin() != false){

header('location:home.php');

exit;

}

$username = $_POST['username'];

$password = $_POST['password'];

$password2 = $_POST['password2'];

if(!$username || !$password || !$password2){

exit('请输入完整信息');

}

if($password !== $password2){

exit('2次密码不一致');

}

$r = connredis();

if($r->get('user:username:'.$username.':userid')){

exit('用户名已经被注册');

}

//获取userID

$userid = $r->incr('global:userid');

$r->set('user:userid:'.$userid.':username',$username);

$r->set('user:userid:'.$userid.':password',$password);

$r->set('user:username:'.$username.':userid',$userid);

//通过一个链表，维护50个表的最新的userid

$r->lpush('newuserlink',$userid);

$r->ltrim('newuserlink',0,49);

?>