问使用配置PHP文件和PHP向多个地址发送电子邮件

EN

<?php
$config = [
    "host" => "xxx",
    "username" => "xxx",
    "password" => "xxx",
    "secure" => "ssl", // ssl or tls
    "port" => 465,
    "sendTo" => "abc@email.com",
    "sendTo2" => "efg@email.com",
    "sendTo3" => "hik@email.com",
    "sendToBCC" => "xyz@email.com",
    "from" => "no-reply@email.com",
    "fromName" => "Contact Form"
];

//Recipients
$mail->setFrom($config['from'], $config['fromName']);
$mail->addAddress($config['sendTo']);
$mail->addAddress($config['sendTo2']);
$mail->addAddress($config['sendTo3']);
$mail->addCC($config['sendToCC']);          
$mail->addBCC($config['sendToBCC']);
$mail->addAddress($_POST['email']);

$addrs = preg_split('#[\\s;,]+#', $config['sendTo'], -1, PREG_SPLIT_NO_EMPTY);
foreach ($addrs as $addr) {
    $mail->addAddress($addr);
}

function filterMail($emails) {
    $emails = array_map('trim', $emails);
    $emails = array_filter($emails);
    $emails = array_unique($emails);
    $emails = array_map(
        function ($email) {
            return filter_var($email, FILTER_VALIDATE_EMAIL);
        },
        $emails
    );
    $emails = array_filter($emails);
    $emails = array_values($emails);
    return $emails;
}