我通过base64编码和8位编码发送电子邮件。我想知道如何使用imap_fetchstructure检查消息的编码(这样做了大约两个小时，所以丢失了)，然后正确解码。
Gmail和Mailbox (iOS上的应用程序)将其发送为8bit，而Windows 8的Mail应用程序将其发送为base64。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8bit还是base64。
使用PHP 5.1.6(是的，我应该更新，一直忙)。
我真的没有代码要展示。这是我所有的:
<?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);
?>
imap_bodystruct()或imap_fetchstructure()应该将此信息返回给您。下面的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);
?>
你可以看看这个例子。
Imap/Imap
下面是代码片段
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;
}
imap_fetchstructure()的返回对象
- 编码(Body transfer encoding)
传输编码(可能因使用的库而异)
0 7位1 8位2二进制3 BASE644 QUOTED-PRINTABLE5其他
$s = imap_fetchstructure($mbox,$mid);
if ($s->encoding==3)
$data = base64_decode($data);
我也遇到过这个问题，这就是我如何解决的
$structure = imap2_fetchstructure($connection, $messages);
if (!isset($structure->parts) || !is_array($structure->parts) || !isset($structure->parts[0])) {
$body = imap2_body($connection, $messages);
return base64_decode($body);
}
$part = $structure->parts[0];
$body = imap2_fetchbody($connection, $messages, '1');
if ($part->encoding == 3) {
return base64_decode($body);
}
if ($part->encoding == 1) {
return imap2_8bit($body);
}
return imap2_qprint($body);
// Best for reading attached file from e-mail as well as body of the mail
$hostname = '{imap.gmail.com:993/imap/ssl}Inbox';
$username = 'xzy.xyz@xyz.com';
$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