<?php
namespace app\index\controller;
use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\Exception;
class Email
{
    public function index()
    {
        return 1;
    }
    public function sendEmail()
    {
        $mail = new PHPMailer(true);                              // Passing `true` enables exceptions
        try {
            //Server settings
            $mail->SMTPDebug = 2;                                 // Enable verbose debug output
            $mail->isSMTP();                                      // Set mailer to use SMTP
            $mail->Host = 'smtp.exmail.qq.com';  // Specify main and backup SMTP servers
            $mail->SMTPAuth = true;                               // Enable SMTP authentication
            $mail->Username = 'a@cjh.kim';                 // SMTP username
            $mail->Password = '*';                           // SMTP password
            $mail->SMTPSecure = 'tls';                            // Enable TLS encryption, `ssl` also accepted
            $mail->Port = 587;                                    // TCP port to connect to

            //Recipients
            $mail->setFrom('a@cjh.kim', 'Mailer');
            $mail->addAddress('529848863@qq.com', 'Mailer');     // Add a recipient
//            $mail->addAddress('ellen@example.com');               // Name is optional
//            $mail->addReplyTo('info@example.com', 'Information');
//            $mail->addCC('cc@example.com');
//            $mail->addBCC('bcc@example.com');

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

            //Content
            $mail->isHTML(true);                                  // Set email format to HTML
            $mail->Subject = 'Here is the subject';
            $mail->Body    = 'This is the HTML message body <b>in bold!</b>';
            $mail->AltBody = 'This is the body in plain text for non-HTML mail clients';

            $mail->send();
            echo 'Message has been sent';
        } catch (Exception $e) {
            echo 'Message could not be sent. Mailer Error: ', $mail->ErrorInfo;
        }
    } 

}需求

1.php-sockets,openssl 拓展

2.工具

    tp5+

    composer { PHPMailer }

    腾讯企业邮箱 :a@cjh.kim

    主机地址:smtp.exmail.qq.com

3.步骤

   (1) composer.json 添加依赖 

   "require": {
        "phpmailer/phpmailer": "~6.0"
    },

   (2)更新vendor目录

  composer update

    (3)创建邮件类,这里提供测试样例(composer.json 中的依赖遵循psr-4规范的自动加载)

<?php
namespace app\index\controller;
use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\Exception;
class Email
{
    public function index()
    {
        return 1; //访问测试
    }
    public function sendEmail()
    {
        $mail = new PHPMailer(true);                              // Passing `true` enables exceptions
        try {
            //Server settings
            $mail->SMTPDebug = 2;                                 // Enable verbose debug output
            $mail->isSMTP();                                      // Set mailer to use SMTP
            $mail->Host = 'smtp.exmail.qq.com';  // Specify main and backup SMTP servers
            $mail->SMTPAuth = true;                               // Enable SMTP authentication
            $mail->Username = 'a@cjh.kim';                 // SMTP username
            $mail->Password = '*';                           // SMTP password
            $mail->SMTPSecure = 'tls';                            // Enable TLS encryption, `ssl` also accepted
            $mail->Port = 587;                                    // TCP port to connect to

            //Recipients
            $mail->setFrom('a@cjh.kim', 'Mailer');
            $mail->addAddress('529848863@qq.com', 'Mailer');     // Add a recipient
//            $mail->addAddress('ellen@example.com');               // Name is optional
//            $mail->addReplyTo('info@example.com', 'Information');
//            $mail->addCC('cc@example.com');
//            $mail->addBCC('bcc@example.com');

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

            //Content
            $mail->isHTML(true);                                  // Set email format to HTML
            $mail->Subject = 'Here is the subject';
            $mail->Body    = 'This is the HTML message body <b>in bold!</b>';
            $mail->AltBody = 'This is the body in plain text for non-HTML mail clients';

            $mail->send();
            echo 'Message has been sent';
        } catch (Exception $e) {
            echo 'Message could not be sent. Mailer Error: ', $mail->ErrorInfo;
        }
    }
}