步骤1、先下载phpmailer放到vendor目录，如下图
步骤2、在公共函数文件common.php中加入以下代码：
function send_email($to,$subject=‘‘,$content=‘‘){ ???vendor(‘phpmailer.PHPMailerAutoload‘); ////require_once vendor/phpmailer/PHPMailerAutoload.php‘; ???$mail = new PHPMailer; ???$mail->CharSet ?= ‘UTF-8‘; //设定邮件编码，默认ISO-8859-1，如果发中文此项必须设置，否则乱码 ???$mail->isSMTP(); ???//Enable SMTP debugging ???// 0 = off (for production use) ???// 1 = client messages ???// 2 = client and server messages ???$mail->SMTPDebug = 0; ???//调试输出格式 ???//$mail->Debugoutput = ‘html‘; ???//smtp服务器 ???$mail->Host = config(‘email.smtp_server‘); ???//端口 - likely to be 25, 465 or 587 ???$mail->Port = 465; ???if($mail->Port === 465) $mail->SMTPSecure = ‘ssl‘;// 使用安全协议 ???//Whether to use SMTP authentication ???$mail->SMTPAuth = true; ???//发送邮箱 ???$mail->Username = config(‘email.smtp_user‘); ???//密码 ???$mail->Password = config(‘email.smtp_pwd‘); ???//Set who the message is to be sent from ???$mail->setFrom(config(‘email.smtp_user‘),‘尊敬的用户‘); ???//回复地址 ???//$mail->addReplyTo(‘replyto@example.com‘, ‘First Last‘); ???//接收邮件方 ???if(is_array($to)){ ???????foreach ($to as $v){ ???????????$mail->addAddress($v); ???????} ???}else{ ???????$mail->addAddress($to); ???} ???$mail->isHTML(true);// send as HTML ???//标题 ???$mail->Subject = $subject; ???//HTML内容转换 ???$mail->msgHTML($content); ???//Replace the plain text body with one created manually ???//$mail->AltBody = ‘This is a plain-text message body‘; ???//添加附件 ???//$mail->addAttachment(‘images/phpmailer_mini.png‘); ???//send the message, check for errors ???return $mail->Send();}步骤3、在config.php中增加以下代码：
//email ???‘email‘ ?=> [ ???????‘smtp_server‘ ??=> ‘邮箱服务地址‘, ???????‘smtp_port‘ ????=> ‘端口号‘, ???????‘smtp_user‘ ????=> ‘用户名‘, ???????‘smtp_pwd‘ ?????=> ‘密码‘, ???],
步骤4、调用
send_email($to, $title, $content);//$to ?要发送的地址//$title 邮件标题//$content 邮件内容
thinkphp5中如何正确使用phpmailer发送邮件
原文地址：https://www.cnblogs.com/bbee888/p/10440925.html