Thinkphp3.2版本使用163邮箱发（验证码）邮件

// 配置邮件发送服务器
    ‘MAIL_HOST‘ =>‘smtp.163.com‘,//smtp服务器的名称
    ‘MAIL_SMTPAUTH‘ =>TRUE, //启用smtp认证
    ‘MAIL_USERNAME‘ =>‘99999999@163.com‘,//发件人的邮箱名
    ‘MAIL_PASSWORD‘ =>‘9999999‘,//163邮箱发件人授权密码
    ‘MAIL_FROM‘ =>‘9999999@163.com‘,//发件人邮箱地址
    ‘MAIL_FROMNAME‘=>‘某某名‘,//发件人姓名
    ‘MAIL_CHARSET‘ =>‘utf-8‘,//设置邮件编码
    ‘MAIL_ISHTML‘ =>TRUE, // 是否HTML格式邮件

<?php
/*
 * 发送邮件
 * @param $to string
 * @param $title string
 * @param $content string
 * @return bool
 * */
function sendMail($to, $title, $content) {
 Vendor(‘PHPMailer.PHPMailerAutoload‘);
 $mail = new PHPMailer(); //实例化
 $mail->IsSMTP(); // 启用SMTP
 $mail->Host=C(‘MAIL_HOST‘); //smtp服务器的名称（这里以QQ邮箱为例）
 $mail->SMTPAuth = C(‘MAIL_SMTPAUTH‘); //启用smtp认证
 $mail->Username = C(‘MAIL_USERNAME‘); //发件人邮箱名
 $mail->Password = C(‘MAIL_PASSWORD‘) ; //163邮箱发件人授权密码
 $mail->From = C(‘MAIL_FROM‘); //发件人地址（也就是你的邮箱地址）
 $mail->FromName = C(‘MAIL_FROMNAME‘); //发件人姓名
 $mail->AddAddress($to,"尊敬的客户");
 $mail->WordWrap = 50; //设置每行字符长度
 $mail->IsHTML(C(‘MAIL_ISHTML‘)); // 是否HTML格式邮件
 $mail->CharSet=C(‘MAIL_CHARSET‘); //设置邮件编码
 $mail->Subject =$title; //邮件主题
 $mail->Body = $content; //邮件内容
 $mail->AltBody = "这是一个纯文本的身体在非营利的HTML电子邮件客户端"; //邮件正文不支持HTML的备用显示
 return($mail->Send());
}

<form method="post" action="">
        <input name="forget_name" id="forget_name" placeholder="账号" required="" type="text">
        <hr class="hr15">
        <input name="forget_email" placeholder="邮箱" id="forget_email" required="" type="text" style="width:70%">
        <a href="#" onclick="send();">发送验证码</a>
        <hr class="hr15">
        <input name="code" placeholder="验证码" required="" type="text">
        <hr class="hr15">
        <input name="new_pass" placeholder="新密码" required="" type="text">
        <hr class="hr15">
        <input value="发送验证码" style="width:100%;" type="submit">
        <hr class="hr20">
        <a href="">登录</a>
    </form>
    <script>
        function send(){
           var name = $(‘#forget_name‘).val();
           var email = $(‘#forget_email‘).val();
            $.ajax({
                type:"get",
                url:"http://127.0.0.1/index.php/Edu/Login/send.html",
                async:true,
                contentType:"application/json",
                dataType:"json",
                data:{"forget_name":name,"forget_email":email},
                success:function(data){
                    alert(data);
                }
            });
        }
    </script>
    <script src="__PUBLIC__/Admin/style/jquery.min.js"></script>

//发送邮件验证码
    public function send(){
        if(IS_AJAX){
            //接收账号信息
            $data[‘name‘] = I(‘get.forget_name‘);
            if(!$data[‘name‘]) $this->ajaxReturn("请填写登录账号",0);
            //接收邮箱
            $data[‘email‘] = I(‘get.forget_email‘);
            if(!$data[‘email‘]) $this->ajaxReturn("请填写邮箱账号",0);
            //验证邮箱格式
            $pattern = "/^([0-9A-Za-z\\-_\\.]+)@([0-9a-z]+\\.[a-z]{2,3}(\\.[a-z]{2})?)$/i";
            if(preg_match( $pattern, $data[‘email‘])){
                //邮箱格式正确下，判断用户是否存在
                $Manager = D(‘Manager‘);
                $condition[‘display‘] = 1;
                $condition[‘name‘] = $data[‘name‘];
                $condition[‘status‘] > 1;
                $ManagerInfo = $Manager->where($condition)->find();
                if($ManagerInfo){
                    //核对用户账号与邮箱是否一致
                    if($ManagerInfo[‘email‘] == $data[‘email‘]){
                        //设置参数
                        $title = "邮箱验证";    //邮件标题
                        $font = "此邮件为找回密码验证邮件，请勿回复，您的验证码为"; //邮件内容
                        $code = rand(1000,9999);    //随机码
                        $content = $font.$code; //拼接
                        if(SendMail($data[‘email‘],$title,$content)) {
                                //存验证码
                                $Condition[‘code‘] = $code;
                                $Condition[‘updatetime‘] = time();
                                $Cond[‘name‘] = $data[‘name‘];
                                $ManagerSave = $Manager->where($Cond)->save($Condition);
                                if($ManagerSave){
                                     $this->ajaxReturn("发送成功",0);
                                }else{
                                    $this->ajaxReturn("验证码保存失败",0);
                                }
                        }else{
                            $this->ajaxReturn("发送失败",0);
                        }
                    }else{
                        $this->ajaxReturn("请核对用户信息的正确性",0);
                    }
                }else{
                    $this->ajaxReturn("请核对用户信息",0);
                }
            }else{
                $this->ajaxReturn("请核对邮箱信息",0);
            }
        }else{
            $this->ajaxReturn(0);
        }
    }