PHP IMAP 解码消息
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PHP IMAP decoding messages
提问by alexpja
I have emails sent via base64 encoding and 8bit encoding. I was wondering how I could check the encoding of the message using imap_fetchstructure (been doing this for about two hours, so lost) and then decode it properly.
我有通过 base64 编码和 8 位编码发送的电子邮件。我想知道如何使用 imap_fetchstructure 检查消息的编码（已经这样做了大约两个小时，所以丢失了）然后正确解码。
Gmail and Mailbox (app on iOS) are sending it as 8bit while Windows 8's Mail app is sending it as base64. Either way, I need to decode whether its 8bit or base64 by detecting what type of encoding it has used.
Gmail 和邮箱（iOS 上的应用程序）以 8 位格式发送，而 Windows 8 的邮件应用程序以 base64 格式发送。无论哪种方式，我都需要通过检测它使用的编码类型来解码它是 8 位还是 base64。
Using PHP 5.1.6 (yes, I should update, been busy).
使用 PHP 5.1.6（是的，我应该更新，很忙）。
I really have no code to show. This is all I have:
我真的没有代码可以显示。这就是我所拥有的：
<?php
$hostname = '{********:993/imap/ssl}INBOX';
$username = '*********';
$password = '******';
$inbox = imap_open($hostname,$username,$password) or die('Cannot connect to server: ' . imap_last_error());
$emails = imap_search($inbox,'ALL');
if($emails) {
$output = '';
rsort($emails);
foreach($emails as $email_number) {
$overview = imap_fetch_overview($inbox,$email_number,0);
$message = imap_fetchbody($inbox,$email_number,2);
$struct = imap_fetchstructure($inbox, $email_number);
$output.= '<div class="toggle'.($overview[0]->seen ? 'read' : 'unread').'">';
$output.= '<span class="subject">'.$overview[0]->subject.'</span> ';
$output.= '<span class="from">'.$overview[0]->from.'</span>';
$output.= '<span class="date">on '.$overview[0]->date.'</span>';
$output.= '</div>';
/* output the email body */
$output.= '<div class="body">'.$message.'</div>';
}
echo $output;
}
imap_close($inbox);
?>
回答by Garry Welding
imap_bodystruct() or imap_fetchstructure() should return this info to you. The following code should do exactly what you're looking for:
imap_bodystruct() 或 imap_fetchstructure() 应将此信息返回给您。以下代码应该完全符合您的要求：
<?php
$hostname = '{********:993/imap/ssl}INBOX';
$username = '*********';
$password = '******';
$inbox = imap_open($hostname,$username,$password) or die('Cannot connect to server: ' . imap_last_error());
$emails = imap_search($inbox,'ALL');
if($emails) {
$output = '';
rsort($emails);
foreach($emails as $email_number) {
$overview = imap_fetch_overview($inbox,$email_number,0);
$structure = imap_fetchstructure($inbox, $email_number);
if(isset($structure->parts) && is_array($structure->parts) && isset($structure->parts[1])) {
$part = $structure->parts[1];
$message = imap_fetchbody($inbox,$email_number,2);
if($part->encoding == 3) {
$message = imap_base64($message);
} else if($part->encoding == 1) {
$message = imap_8bit($message);
} else {
$message = imap_qprint($message);
}
}
$output.= '<div class="toggle'.($overview[0]->seen ? 'read' : 'unread').'">';
$output.= '<span class="from">From: '.utf8_decode(imap_utf8($overview[0]->from)).'</span>';
$output.= '<span class="date">on '.utf8_decode(imap_utf8($overview[0]->date)).'</span>';
$output.= '<br /><span class="subject">Subject('.$part->encoding.'): '.utf8_decode(imap_utf8($overview[0]->subject)).'</span> ';
$output.= '</div>';
$output.= '<div class="body">'.$message.'</div><hr />';
}
echo $output;
}
imap_close($inbox);
?>
回答by Felix
You can look at this example.
你可以看看这个例子。
Here's code snippet
这是代码片段
switch ($encoding) {
# 7BIT
case 0:
return $text;
# 8BIT
case 1:
return quoted_printable_decode(imap_8bit($text));
# BINARY
case 2:
return imap_binary($text);
# BASE64
case 3:
return imap_base64($text);
# QUOTED-PRINTABLE
case 4:
return quoted_printable_decode($text);
# OTHER
case 5:
return $text;
# UNKNOWN
default:
return $text;
}
回答by Ujwal Abhishek
Returned Objects for imap_fetchstructure()
imap_fetchstructure() 的返回对象
- encoding (Body transfer encoding)
- 编码（身体传输编码）
Transfer encodings (may vary with used library)
传输编码（可能因使用的库而异）
0 7BIT 1 8BIT 2 BINARY 3 BASE64 4 QUOTED-PRINTABLE 5 OTHER
0 7BIT 1 8BIT 2 二进制 3 BASE64 4 引用可打印 5 其他
$s = imap_fetchstructure($mbox,$mid);
if ($s->encoding==3)
$data = base64_decode($data);
回答by Naveen Yadav
// Best for reading attached file from e-mail as well as body of the mail
$hostname = '{imap.gmail.com:993/imap/ssl}Inbox';
$username = '[email protected]';
$password = '****************';
$inbox = imap_open($hostname,$username,$password) or die('Cannot connect to Gmail: ' . imap_last_error());
$emails = imap_search($inbox, 'SUBJECT "'.$subject.'"');
rsort($emails);
foreach ($emails as $key => $value) {
$overview = imap_fetch_overview($inbox,$value,0);
$message_date = new DateTime($overview[0]->date);
$date = $message_date->format('Ymd');
$message = imap_fetchbody($inbox,$value,2);
$structure = imap_fetchstructure($inbox, $value);
$attachments = [];
if(isset($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, $value, $i+1);
if($structure->parts[$i]->encoding == 3) //3 = BASE64 encoding
{
$attachments[$i]['attachment'] = base64_decode($attachments[$i]['attachment']);
}
elseif($structure->parts[$i]->encoding == 4) //4 = QUOTED-PRINTABLE encoding
{
$attachments[$i]['attachment'] = quoted_printable_decode($attachments[$i]['attachment']);
}
}
}
}
}
imap_close($inbox);//Never forget to close the connection
