如何在php中安排电子邮件通知

$to = "recipient@example.com";
$subject = "邮件主题";
$message = "邮件内容";

$headers = "From: sender@example.com\r\n";
$headers .= "Reply-To: sender@example.com\r\n";
$headers .= "CC: cc@example.com\r\n";
$headers .= "BCC: bcc@example.com\r\n";

mail($to, $subject, $message, $headers);

require 'PHPMailer/PHPMailerAutoload.php';

$mail = new PHPMailer;

$mail->isSMTP();
$mail->Host = 'smtp.example.com';
$mail->Port = 587;
$mail->SMTPAuth = true;
$mail->Username = 'username@example.com';
$mail->Password = 'password';

$mail->setFrom('sender@example.com', '发件人名称');
$mail->addAddress('recipient@example.com', '收件人名称');
$mail->addReplyTo('reply@example.com', '回复地址');

$mail->Subject = '邮件主题';
$mail->Body = '邮件内容';

if ($mail->send()) {
    echo '邮件发送成功';
} else {
    echo '邮件发送失败：' . $mail->ErrorInfo;
}