php stmp 如何实现群发邮件

要使用 PHP SMTP 实现群发邮件，你可以使用 PHPMailer 这样的库。以下是使用 PHPMailer 进行群发的步骤：

1. 下载并安装 PHPMailer

你可以从 GitHub 上下载 PHPMailer：https://github.com/PHPMailer/PHPMailer

或者通过 Composer 安装：

composer require phpmailer/phpmailer 

2. 创建一个 PHP 文件（例如：send_email.php）并引入 PHPMailer 类

<?php use PHPMailer\PHPMailer\PHPMailer; use PHPMailer\PHPMailer\Exception; use PHPMailer\PHPMailer\SMTP;  require 'vendor/autoload.php';  $mail = new PHPMailer(true); 

3. 配置 SMTP 服务器信息

try {     //Server settings     $mail->SMTPDebug = SMTP::DEBUG_SERVER;                      // Enable verbose debug output     $mail->isSMTP();                                            // Send using SMTP     $mail->Host       = 'smtp.example.com';                     // Set the SMTP server to send through     $mail->SMTPAuth   = true;                                   // Enable SMTP authentication     $mail->Username   = 'your_email@example.com';               // SMTP username     $mail->Password   = 'your_email_password';               // SMTP password     $mail->SMTPSecure = PHPMailer::ENCRYPTION_SMTPS;            // Enable implicit TLS encryption     $mail->Port       = 465;                                    // TCP port to connect to; use 587 if you have set `SMTPSecure = PHPMailer::ENCRYPTION_STARTTLS` 

4. 设置发件人、收件人和邮件内容

    //Recipients     $mail->setFrom('your_email@example.com', 'Mailer');     $mail->addAddress('recipient1@example.com', 'Joe User');     // Add a recipient     $mail->addAddress('recipient2@example.com', 'Jane User');     // Add another recipient      // 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'; 

5. 发送邮件并检查结果

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

6. 遍历收件人列表并群发邮件

<?php $recipients = [     'recipient1@example.com',     'recipient2@example.com',     // Add more recipients here ];  foreach ($recipients as $recipient) {     $mail->clearAddresses();     $mail->addAddress($recipient);     $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';      try {         $mail->send();         echo "Email sent to {$recipient}\n";     } catch (Exception $e) {         echo "Failed to send email to {$recipient}: {$mail->ErrorInfo}\n";     } } ?> 

现在，你可以运行 send_email.php 文件来向所有收件人发送邮件。请注意，为了使这个示例正常工作，你需要将 SMTP 服务器信息、发件人电子邮件地址、密码和收件人电子邮件地址替换为你自己的。