您如何从电子邮件中获取附加的 PDF 并保存，php

Question

我已经坚持了好几个小时了。但基本上，我有一个收件箱，其中包含一些我想取出的内容和附件 PDF。我想出了如何取出我想要的所有 HTML，但是如何保存附加的 PDF？

这是我目前拥有的鳕鱼：

公共函数 read_emails(){ // 设置用户检查

    $strUser     = "email";
    $strPassword = "passwrd";
    $delete_emails=false;

    // open
    $hMail = imap_open ("{webmail.somethingsomething.com:143/notls}INBOX", "$strUser", "$strPassword") or die("can't connect: " . imap_last_error());
    // get headers
    $aHeaders = imap_headers( $hMail );
    // get message count
    $objMail = imap_mailboxmsginfo( $hMail );
    if($objMail != NULL)
    {           
        // process messages
        for( $idxMsg = 1; $idxMsg <= $objMail->Nmsgs; $idxMsg++  )
        {
            // get header info
            $objHeader = imap_headerinfo( $hMail, $idxMsg );

            // get from object array
            $aFrom = $objHeader->from;

            // process headers
            for( $idx = 0; $idx < count($aFrom); $idx++ )
            {
                // get object
                $objData = $aFrom[ $idx ];
                // get email from
                $strEmailFrom = $objData->mailbox . "@" . $objData->host;
                //Get the subject 
                $message_subject = $objHeader->subject;
                //Get the body of the message
                $fullBody = imap_fetchbody($hMail,$idxMsg, 2);//displays full body including junk
                $bodyMessage = quoted_printable_decode($fullBody);
                //Get the msg structure 
                $message_structure = imap_fetchstructure($hMail, $idx);
                //WHAT DO I DO HERE????
            }

            // delete message
            if($delete_emails == true){
                imap_delete( $hMail, $idxMsg );
            }

        }

        // expunge deleted messages
        if($delete_emails == true){
            imap_expunge( $hMail );
        }


        //Clears the cache
        imap_gc($hMail, IMAP_GC_ELT);

    }
    // close
    imap_close( $hMail );



}

我有消息结构，如果我 print_r 可以看到其中一个部分有附件，我可以看到它是 PDF。不知道接下来会发生什么。我已经尝试过，似乎无法找到一个好的解决方案。

谢谢！

编辑：这里是 imap_fetchstructure 的内容

stdClass 对象 ( [type] => 1 [encoding] => 0 [ifsubtype] => 1 [subtype] => MIXED [ifdescription] => 0 [ifid] => 0 [ifdisposition] => 0 [ifdparameters ] => 0 [ifparameters] => 1 [parameters] => Array ([0] => stdClass Object ([attribute] =>boundary [value] => f46d044473ef81609f04d5f1997c) ) [parts] => Array ([0] = > stdClass Object ( [type] => 1 [encoding] => 0 [ifsubtype] => 1 [subtype] => ALTERNATIVE [ifdescription] => 0 [ifid] => 0 [ifdisposition] => 0 [ifdparameters] = > 0 [ifparameters] => 1 [parameters] => Array ([0] => stdClass Object ([attribute] => boundary [value] => f46d044473ef81609b04d5f1997a)) [parts] => Array ([0] => stdClass对象 ( [type] => 0 [encoding] => 0 [ifsubtype] => 1 [subtype] => PLAIN [ifdescription] => 0 [ifid] => 0 [lines] => 1 [bytes] => 37 [ifdisposition] => 0 [ifdparameters] => 0 [ifparameters] => 1 [parameters] => 数组（[0] => stdClass 对象（[attribute] => charset [value] => ISO-8859-1） ) ) [1] => stdClass Object ( [type] => 0 [encoding] => 0 [ifsubtype] => 1 [subtype] => HTML [ifdescription] => 0 [ifid] => 0 [lines] => 1 [bytes] => 37 [ifdisposition] => 0 [ifdparameters] => 0 [ifparameters] => 1 [parameters] => 数组 ([0] => stdClass 对象 ([attribute] => charset [value] => ISO-8859-1 ) ) ) ) [1] => stdClass 对象( [type] => 3 [encoding] => 3 [ifsubtype] => 1 [subtype] => PDF [ifdescription] => 0 [ifid] => 0 [bytes] => 179876 [ifdisposition] => 1 [ disposition] => attachment [ifdparameters] => 1 [dparameters] => Array ([0] => stdClass Object ([attribute] => filename [value] => Statement of Account.pdf) ) [ifparameters] => 1 [parameters] => Array ([0] => stdClass Object([attribute] => name [value] => Statement of Account.pdf ) ) ) )

Answer 1

根据doc，您在$message_structure->parts 中有一个身体部位数组，因此您可以循环该数组并在零件的->type 和->subtype 对应于PDF 文档时停止。比如：

foreach ($message_structure->parts as $idx => $part) {
    if (TYPEAPPLICATION === $part->type && 'pdf' === strtolower($part->subtype)) {
        $data = imap_fetchbody($hMail, $idxMsg, $idx);
        // Then you should check the $part->encoding
        // to decode data appropriately, e.g.:
        if (ENCBASE64 === $part->encoding) {
            $data = base64_decode($data);
        }
    }
}