thinkphp5.1使用PHPMailer

1. composer下载PHPMailer

   composer require phpmailer/phpmailer
   

2. 新建文件Mail.php,如下图
   
3. Mail.php代码如下

/**
 * Created by PhpStorm.
 * User: 17839
 * Date: 2020/3/22
 * Time: 16:04
 */

namespace app\common\lib\Mail;

use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\SMTP;
use PHPMailer\PHPMailer\Exception;

class Mail
{
    public function sendMail($email, $username, $subject = '', $body = '')
    {
        $mail = new PHPMailer(true);

//        try {
            //Server settings
            $mail->SMTPDebug = SMTP::DEBUG_OFF;                      // 是否开启发送调式
            $mail->isSMTP();                                            // 设置发送协议是smtp
            $mail->Host     = 'smtp.qq.com';        // qq邮箱会好用一些
            // 设置邮件内容的编码
            $mail->CharSet='UTF-8';// SMTP服务地址
            $mail->SMTPAuth = true;                                   // 是否开启MSTP验证
            $mail->Username = config('mail.email');                // 发件人的邮箱地址
            $mail->Password = config('mail.password');                            // 发件人邮箱授权码
            //$mail->SMTPSecure = PHPMailer::ENCRYPTION_STARTTLS;         // Enable TLS encryption; `PHPMailer::ENCRYPTION_SMTPS` encouraged
            //$mail->Port       = 587;                                    // TCP port to connect to, use 465 for `PHPMailer::ENCRYPTION_SMTPS` above

            //Recipients
            $mail->setFrom(config('mail.email'), '欢迎欢迎');   // 发送邮件的名称
            $mail->addAddress($email, $username);     // 添加收件人的邮箱地址
            //$mail->addAddress('[e-mail]');               // 第二个参数可选
            //$mail->addReplyTo('[e-mail]', 'Information'); // 添加恢复地址
            //$mail->addCC('[e-mail]');  // 抄送地址
            //$mail->addBCC('[e-mail]');

            // Attachments
            //$mail->addAttachment('/var/tmp/file.tar.gz');         // 添加附件
            //$mail->addAttachment('/tmp/image.jpg', 'new.jpg');    // Optional name

            // Content
            $mail->isHTML(true);                                  // 设置邮件的内容格式
            $mail->Subject = $subject;  // 邮件的主题
            $mail->Body    = $body; // 邮件的正文
            //$mail->AltBody = 'This is the body in plain text for non-HTML mail clients';
            // 当内容不能正常现实的时候显示的内容

            $res = $mail->send();
            if (!$res) {
                return $mail->ErrorInfo;
            }
            return true;

//        } catch (Exception $e) {
//            echo "Message could not be sent. Mailer Error: {$mail->ErrorInfo}";
//        }
    }
}

5. 在app/index/controller/index.php试用自己封装的类库

namespace app\index\controller;


use app\common\lib\alidayu\AliSms;
use app\common\lib\express100\Express;
use app\common\lib\Mail\Mail;
use app\common\lib\sms\Sms;
use think\Controller;

class Index extends Controller
{
    public function index()
    {
//        // 云之讯
////        $sms = new Sms();
//        // 阿里大鱼
//        $sms = new AliSms();
//
//        // 用自己的手机号实验
//        $phone = '17515401314';
//        $code = self::getCode();
//        $data = $sms->smsSend($phone, $code);
//        halt($data);
        $email    = '[e-mail]';
        $username = 'Tom';
        $subject  = '欢迎**';
        $body     = '您的***：' . $this->getCode();

        $mail = new Mail();

        $res = $mail->sendMail($email, $username, $subject, $body);
        if ($res == true) {
            echo '发送成功';
        }

    }

    /**
     * 随机产生验证码 4位或6位
     * @param int $num [几位数验证码]
     * @return int
     */
    public static function getCode($num = 4)
    {
        if ($num == 4) {
            return rand(1000, 9999);
        } else {
            return rand(100000, 999999);
        }
    }
}

7. 访问 http://<自己的域名>,得到如下结果
   ok