使用 PHP 中的 IMAP 将附件下载到目录，随机工作

本文介绍了使用 PHP 中的 IMAP 将附件下载到目录，随机工作的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我在网上找到了 PHP 代码，可以从这里使用 IMAP 将附件下载到目录中.http://www.nerdydork.com/download-pop3imap-email-attachments-with-php.html

I found PHP code online to download attachments to a directory using IMAP from here. http://www.nerdydork.com/download-pop3imap-email-attachments-with-php.html

我稍微修改了一下

        $structure = imap_fetchstructure($mbox, $jk);
        $parts = ($structure->parts);

到

        $structure = imap_fetchstructure($mbox, $jk);
        $parts = ($structure);

以使其正常运行，否则我会收到关于 stdClass 如何未定义名为 $parts 的属性的错误.这样做，我能够下载所有附件.不过最近我又测试了一下，还是不行.嗯，它没有工作 6 次，第 7 次工作，然后一直没有工作.我认为这与我搞砸了零件处理有关，因为 count($parts) 一直为每条消息返回 1，所以我认为它没有找到任何附件.

to get it to run properly, as otherwise I got an error about how stdClass doesn't define a property called $parts. Doing that, I was able to download all the attachments. I tested it again recently though, and it didn't work. Well, it didn't work 6 times, worked the 7th, and then hasn't worked since. I'm thinking it has something to do with me screwing up the parts handling, since count($parts) keeps returning 1 for each message, so it's not finding any attachments I think.

因为它一次性下载了附件，没有任何问题，所以我相信事情被搞砸的区域就在这里.在此代码块之前是一个 for 循环，它遍历框中的每个消息，在它之后是一个循环，它只遍历每个 imap 结构的 $parts.感谢您的任何帮助，您可以提供.我查看了 php.net 上的 imap_fetchstructure 页面，但无法弄清楚我做错了什么.

Since it downloaded the attachments at one point with no issues, I feel confident that the area things are getting screwed up is right here. Before this block of code is a for loop that goes through each message in the box, and after it is loop that just goes through $parts for each imap structure. Thanks for any help you can provide. I looked at the imap_fetchstructure page on php.net and can't figure out what I'm doing wrong.

我只是在输入我的问题后仔细检查了文件夹，然后一切都弹出了.我觉得我快疯了.自从我开始输入之前的几分钟以来，我就没有运行过代码，对我来说需要这么长时间才能触发是没有意义的.我的邮箱中有大约 800 条消息，但我想，因为它在 PHP 的最后打印了我的声明，所有文件创建工作都已完成.

I just double-checked the folder after typing up my question and it all popped up. I feel like I'm going nuts. I hadn't run the code since a few minutes before I started typing this, and it doesn't make sense to me that it would take this long to trigger. I have some 800 messages in the mailbox, but I figured since it printed my statement at the very end of the PHP that all of the file creation work was done.

推荐答案

这是完美的工作答案，试试这个.

This is perfect working answer, try this.

此示例运行正常，下载所有附件没有问题.

This Sample run properly and download all the attachments with no issues.

<?php

set_time_limit(3000); 

/* connect to gmail with your credentials */
$hostname = '{imap.gmail.com:993/imap/ssl}INBOX';
$username = 'YOUR_USERNAME'; 
$password = 'YOUR_PASSWORD';

/* try to connect */
$inbox = imap_open($hostname,$username,$password) or die('Cannot connect to Gmail: ' . imap_last_error());

$emails = imap_search($inbox, 'FROM "abc@gmail.com"');

/* if any emails found, iterate through each email */
if($emails) {

    $count = 1;

    /* put the newest emails on top */
    rsort($emails);

    /* for every email... */
    foreach($emails as $email_number) 
    {

        /* get information specific to this email */
        $overview = imap_fetch_overview($inbox,$email_number,0);

        $message = imap_fetchbody($inbox,$email_number,2);

        /* get mail structure */
        $structure = imap_fetchstructure($inbox, $email_number);

        $attachments = array();

        /* if any attachments found... */
        if(isset($structure->parts) && count($structure->parts)) 
        {
            for($i = 0; $i < count($structure->parts); $i++) 
            {
                $attachments[$i] = array(
                    'is_attachment' => false,
                    'filename' => '',
                    'name' => '',
                    'attachment' => ''
                );

                if($structure->parts[$i]->ifdparameters) 
                {
                    foreach($structure->parts[$i]->dparameters as $object) 
                    {
                        if(strtolower($object->attribute) == 'filename') 
                        {
                            $attachments[$i]['is_attachment'] = true;
                            $attachments[$i]['filename'] = $object->value;
                        }
                    }
                }

                if($structure->parts[$i]->ifparameters) 
                {
                    foreach($structure->parts[$i]->parameters as $object) 
                    {
                        if(strtolower($object->attribute) == 'name') 
                        {
                            $attachments[$i]['is_attachment'] = true;
                            $attachments[$i]['name'] = $object->value;
                        }
                    }
                }

                if($attachments[$i]['is_attachment']) 
                {
                    $attachments[$i]['attachment'] = imap_fetchbody($inbox, $email_number, $i+1);

                    /* 3 = BASE64 encoding */
                    if($structure->parts[$i]->encoding == 3) 
                    { 
                        $attachments[$i]['attachment'] = base64_decode($attachments[$i]['attachment']);
                    }
                    /* 4 = QUOTED-PRINTABLE encoding */
                    elseif($structure->parts[$i]->encoding == 4) 
                    { 
                        $attachments[$i]['attachment'] = quoted_printable_decode($attachments[$i]['attachment']);
                    }
                }
            }
        }

        /* iterate through each attachment and save it */
        foreach($attachments as $attachment)
        {
            if($attachment['is_attachment'] == 1)
            {
                $filename = $attachment['name'];
                if(empty($filename)) $filename = $attachment['filename'];

                if(empty($filename)) $filename = time() . ".dat";
                $folder = "attachment";
                if(!is_dir($folder))
                {
                     mkdir($folder);
                }
                $fp = fopen("./". $folder ."/". $email_number . "-" . $filename, "w+");
                fwrite($fp, $attachment['attachment']);
                fclose($fp);
            }
        }
    }
} 

/* close the connection */
imap_close($inbox);

echo "all attachment Downloaded";

?>

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