如何从PHP获取电子邮件及其附件

<?php
$hostname = '{imap.example.com:993/imap/ssl}INBOX';
$username = 'your_email@example.com';
$password = 'your_password';

// 连接到邮件服务器
$inbox = imap_open($hostname, $username, $password) or die('Cannot connect to mail server: ' . imap_last_error());

// 获取邮件列表
$emails = imap_search($inbox, 'ALL');

if ($emails) {
    // 按日期排序邮件
    rsort($emails);

    // 遍历邮件
    foreach ($emails as $email_number) {
        // 获取邮件详细信息
        $overview = imap_fetch_overview($inbox, $email_number, 0);
        echo "Subject: " . $overview[0]->subject . "\n";
        echo "From: " . $overview[0]->from . "\n";
        echo "Date: " . $overview[0]->date . "\n";

        // 获取邮件结构
        $structure = imap_fetchstructure($inbox, $email_number);

        // 处理附件
        if (isset($structure->parts) && count($structure->parts)) {
            for ($i = 0; $i < count($structure->parts); $i++) {
                $part = $structure->parts[$i];

                // 检查是否有附件
                if ($part->ifdparameters) {
                    foreach ($part->dparameters as $object) {
                        if (strtolower($object->attribute) == 'filename') {
                            $filename = $object->value;

                            // 下载附件
                            $attachment = imap_fetchbody($inbox, $email_number, $i + 1);
                            if ($part->encoding == 3) { // base64编码
                                $attachment = base64_decode($attachment);
                            } elseif ($part->encoding == 4) { // quoted-printable编码
                                $attachment = quoted_printable_decode($attachment);
                            }

                            // 保存附件到本地
                            file_put_contents($filename, $attachment);
                            echo "Attachment saved: " . $filename . "\n";
                        }
                    }
                }
            }
        }
    }
}

// 关闭连接
imap_close($inbox);
?>