phpmailer的使用方法

composer require phpmailer/phpmailer

<?php
header('content-type:text/html;charset=utf-8;');
set_time_limit(3600);

require "vendor/autoload.php";
$send_res = sendEmail('主題', '內容', '[email protected]');die;

// phpmailer 的使用
// sendEmail('主題', '內容', '收件郵箱', '附件');
function sendEmail($subject, $contents, $to_email, $attach_file='')
{
    $mail = new PHPMailer\PHPMailer\PHPMailer();
    $mail->isSMTP();
    $mail->CharSet = 'utf8';     //設定郵件編碼
    $mail->Host = 'smtp.exmail.qq.com';   //SMTP服務器
    $mail->SMTPAuth = true;
    $mail->Username = '[email protected]';   //郵箱用戶名
    $mail->Password = '密碼或者授權碼';   //密碼或者授權碼
    $mail->SMTPSecure = "ssl";
    $mail->Port = 465;    //服務器端口 25 或者465 具體要看郵箱服務器支持
    $mail->IsHTML(true);
    $mail->setFrom("[email protected]", "jianlong");    //發件人
    //$mail->addReplyTo('[email protected]', 'info');      //回覆的時候回覆給哪個郵箱 建議和發件人一致
    $mail->addAddress($to_email);
    //$mail->addAddress('[email protected]');         // 可添加多個收件人
    //$mail->addCC('[email protected]');                    //抄送
    //$mail->addBCC('[email protected]');                    //密送

    if (!empty($attach_file)) {
        $file_name = basename($attach_file);
        $mail->AddAttachment($attach_file, $file_name);   // 發送附件並且重命名
    }
    $mail->Subject = $subject;
    $mail->Body = $contents;
    //$mail->AltBody = '如果郵件客戶端不支持HTML則顯示此內容';

    if (!$mail->send()) {
        trace($mail->ErrorInfo, 'error');
        return 0;
    } else {
        return 1;
    }
}