require 'PHPMailer/src/PHPMailer.php';

$mail = new PHPMailerPHPMailerPHPMailer(php读取邮件的方法是什么);
$mail->isPOP3();
$mail->Host = 'mail.example.com';
$mail->Port = 110;
$mail->Username = 'username';
$mail->Password = 'password';
$mail->setFrom('from@example.com');
$mail->addAddress('to@example.com');

if ($mail->connect()) {
$mail->login();

$mails = $mail->listMessages();

foreach ($mails as $mail) {
$subject = $mail->subject;
$from = $mail->from;
// 其他操作...
}

$mail->disconnect();
}