PHP利用缓存处理用户注册时的邮箱验证，成功后

<?php
header("content-type:text/html;charset=utf-8");
@$atc=$_GET['atc'];
$mem=new Memcache();
$mem->connect("127.0.0.1","11211");
if($atc=="in"){
  $res=$mem->add("login",$_POST,MEMCACHE_COMPRESSED,0);
  $meil=$mem->get("login");
  $address=$meil['address'];
  include "./PHPMailer/Mail.class.php";
  $validate=md5(md5("luyaran"));
  $url="http://www.luyaran.com/login.php?atc=jihuo&validate=".urlencode(base64_encode($validate));
  $content="<a href='{$url}'>".$url."</a>";
  if(Mail::send($content,$address)){
    echo "<script>alert('注册成功');</script>";
  }else{
    echo "<script>alert('注册失败');</script>";
  }
}else if($atc=="login"){
//登陆时需查看状态码是否激活
 include "table.html";
}else if($atc=="jihuo"){
  //验证用户名和密码是否与缓存中的一致
  include "table.html";
}else{
  include "table2.html";
}
?>

<?php
//引入原来的类文件
 require 'class.phpmailer.php';
class Mail {
    static public $error = '';
    static public function send($content,$address){
        $mail= new PHPMailer();
        /*服务器相关信息*/
        $mail->IsSMTP();         //设置使用SMTP服务器发送
        $mail->SMTPAuth = true;        //开启SMTP认证
        $mail->Host   = 'smtp.163.com';     //设置 SMTP 服务器,自己注册邮箱服务器地址
        $mail->Username  = 'm18101301805@163.com'; //发信人的邮箱名称
        $mail->Password  = 'luyaran520';  //发信人的邮箱密码
        /*内容信息*/
        $mail->IsHTML(true);      //指定邮件格式为：html 不加true默认为以text的方式进行解析
        $mail->CharSet  ="UTF-8";        //编码
        $mail->From    = 'm18101301805@163.com';      //发件人完整的邮箱名称
        //$mail->FromName  = $user;     //发信人署名
        $mail->FromName  = "崔金朋";    //发信人署名
        //$mail->Subject  = $title;       //信的标题
        $mail->Subject  = "激活显示";      //信的标题
        $mail->MsgHTML($content);        //发信主体内容
        //$mail->AddAttachment("15.jpg");    //附件
        /*发送邮件*/
        $mail->AddAddress($address);     //收件人地址
        //使用send函数进行发送
        if($mail->Send()) {
          return true;
        } else {
           self::$error=$mail->ErrorInfo;
           return  false;
        }
    }
}
?>

<?php
header("content-type:text/html;charset=utf-8");
$mem=new Memcache();
//var_dump($mem);
$mem->connect("127.0.0.1","11211");
//$mem->set("name","cuijinpeng",0,20);
//echo $mem->get("name");
//对象的操作
//class Dog{
//  public $name;
//  public $age;
//  public function __construct($name,$age){
//    $this->name = $name;
//    $this->age = $age;
//  }
/