imap_fetchstructure

(PHP 4, PHP 5, PHP 7, PHP 8)

imap_fetchstructureЧитает структуру указанного сообщения

Описание

imap_fetchstructure(IMAP\Connection $imap, int $message_num, int $flags = 0): stdClass|false

Извлекает информацию о структуре указанного сообщения.

Список параметров

imap

Экземпляр класса IMAP\Connection.

message_num

Номер сообщения

flags

Если задано как FT_UID, то в message_num должны быть UID сообщений, а не их номера.

Возвращаемые значения

Возвращает объект со свойствами, перечисленными в таблице ниже или false, если возникла ошибка.

Объект, возвращаемый imap_fetchstructure()
type Первичный тип тела
encoding Кодировка тела
ifsubtype true, если есть строка подтипа
subtype MIME-подтип
ifdescription true, если есть строка описания
description Контент строки описания
ifid true, если есть строка идентификатор
id Строка идентификатор
lines Количество строк
bytes Количество байт
ifdisposition true, если есть строка расположения
disposition Строка расположения
ifdparameters true, если есть массив dparameters
dparameters Массив объектов, каждый из которых имеет свойства "attribute" и "value", соответствующие параметрам Content-disposition заголовка MIME.
ifparameters true, если есть массив параметров
parameters Массив объектов, каждый из которых имеет свойства "attribute" и "value".
parts Массив объектов идентичных по структуре с верхнеуровневым объектом, каждый из которых соответствует MIME части тела.

Первичный тип тела (значения могут отличаться в зависимости от используемой библиотеки, так что рекомендуется использовать константы)
ЗначениеТипКонстанта
0textTYPETEXT
1multipartTYPEMULTIPART
2messageTYPEMESSAGE
3applicationTYPEAPPLICATION
4audioTYPEAUDIO
5imageTYPEIMAGE
6videoTYPEVIDEO
7modelTYPEMODEL
8otherTYPEOTHER

Кодировка (значения могут отличаться в зависимости от используемой библиотеки, так что рекомендуется использовать константы)
ЗначениеТипКонстанта
07bitENC7BIT
18bitENC8BIT
2BinaryENCBINARY
3Base64ENCBASE64
4Quoted-PrintableENCQUOTEDPRINTABLE
5otherENCOTHER

Список изменений

Версия Описание
8.1.0 Параметр imap теперь ожидает экземпляр класса IMAP\Connection; раньше параметр ждал ресурс (resource) imap.

Смотрите также

  • imap_fetchbody() - Извлекает конкретную секцию тела сообщения
  • imap_bodystruct() - Читает структуру указанной секции тела заданного сообщения

Добавить

Примечания пользователей 12 notes

up
50
david at hundsness dot com
16 years ago
Here is code to parse and decode all types of messages, including attachments. I've been using something like this for a while now, so it's pretty robust.

<?php
function getmsg($mbox,$mid) {
// input $mbox = IMAP stream, $mid = message id
// output all the following:
global $charset,$htmlmsg,$plainmsg,$attachments;
$htmlmsg = $plainmsg = $charset = '';
$attachments = array();

// HEADER
$h = imap_header($mbox,$mid);
// add code here to get date, from, to, cc, subject...

// BODY
$s = imap_fetchstructure($mbox,$mid);
if (!
$s->parts) // simple
getpart($mbox,$mid,$s,0); // pass 0 as part-number
else { // multipart: cycle through each part
foreach ($s->parts as $partno0=>$p)
getpart($mbox,$mid,$p,$partno0+1);
}
}

function
getpart($mbox,$mid,$p,$partno) {
// $partno = '1', '2', '2.1', '2.1.3', etc for multipart, 0 if simple
global $htmlmsg,$plainmsg,$charset,$attachments;

// DECODE DATA
$data = ($partno)?
imap_fetchbody($mbox,$mid,$partno): // multipart
imap_body($mbox,$mid); // simple
// Any part may be encoded, even plain text messages, so check everything.
if ($p->encoding==4)
$data = quoted_printable_decode($data);
elseif (
$p->encoding==3)
$data = base64_decode($data);

// PARAMETERS
// get all parameters, like charset, filenames of attachments, etc.
$params = array();
if (
$p->parameters)
foreach (
$p->parameters as $x)
$params[strtolower($x->attribute)] = $x->value;
if (
$p->dparameters)
foreach (
$p->dparameters as $x)
$params[strtolower($x->attribute)] = $x->value;

// ATTACHMENT
// Any part with a filename is an attachment,
// so an attached text file (type 0) is not mistaken as the message.
if ($params['filename'] || $params['name']) {
// filename may be given as 'Filename' or 'Name' or both
$filename = ($params['filename'])? $params['filename'] : $params['name'];
// filename may be encoded, so see imap_mime_header_decode()
$attachments[$filename] = $data; // this is a problem if two files have same name
}

// TEXT
if ($p->type==0 && $data) {
// Messages may be split in different parts because of inline attachments,
// so append parts together with blank row.
if (strtolower($p->subtype)=='plain')
$plainmsg. = trim($data) ."\n\n";
else
$htmlmsg. = $data ."<br><br>";
$charset = $params['charset']; // assume all parts are same charset
}

// EMBEDDED MESSAGE
// Many bounce notifications embed the original message as type 2,
// but AOL uses type 1 (multipart), which is not handled here.
// There are no PHP functions to parse embedded messages,
// so this just appends the raw source to the main message.
elseif ($p->type==2 && $data) {
$plainmsg. = $data."\n\n";
}

// SUBPART RECURSION
if ($p->parts) {
foreach (
$p->parts as $partno0=>$p2)
getpart($mbox,$mid,$p2,$partno.'.'.($partno0+1)); // 1.2, 1.2.1, etc.
}
}
?>
up
3
mkknapp at quadrapod dot com
23 years ago
Assuming $struct = imap_fetchstructure($x,$y);

It is important to note that if a message has NO attachements, $struct->parts is an empty array, and $struct->bytes has a value. If a message as ANY attachements, $struct->bytes ALWAYS = 0. To get the size of the primary body, you have to call structure->part[0]->bytes. To get the size of the whole message, either strlen(imap_body) or add up the ->bytes of all the parts.

Another interesting note:
When there is body text and no attachements:
count($struct->parts) = 0
When there is body text and 1 attachement:
count($struct->parts) = 2

These imap functions could really use better documentation. Like giving the meathods for the dparameter and parameter classes...
up
2
php AT firstnetimpressions.com
22 years ago
Point of clarification:

The seventh primary body type is not "Other" as documented, but actually "Model". This encompasses IGES, VRML, MESH, DWF, etc.

http://www.isi.edu/in-notes/iana/assignments/media-types/media-types

"Other" is the eigth primary body type.
up
2
chrislhill at "O_o" hotmail dot com
21 years ago
For people just beging this may help alot as I spent a couple hours just trying to relize how exact the array was stored. (at the time I did not know the print_r function :P)

$struct = imap_fetchstructure($mbox, $msgnumber);
print_r($struct);

Will give you a better example for your messages but they are called as $struct using the varible method above.

$struct->type; //would return the type
$struct->encoding //would return the encoding

and etc..

This can be done many different ways but that is the basics on pulling the info out of the structure of fetchstructure itself, I hope it helps someone starting because it wouldve helped me :/.
up
2
sirber at detritus dot qc dot ca
18 years ago
"Primary body type" of "unknown/unknown" will be int(9).
up
1
masterbassist
19 years ago
I think the following line (when building attachment information)

>>> "filename" => $parts[$i]->parameters[0]->value

needs to be

>>> "filename" => $parts[$i]->dparameters[0]->value

The first version generated a PHP warning under PHP 5.0.3. The second version actually gets the filename.
up
2
phpnet,a,emailaddress,cjb,net
17 years ago
Another comment to inform people about something that should really be in the function description:

imap_fetchstructure() downloads the entire email, attachments and all, rather than just the structure.
I guess it's an undocumented feature, not a bug.

I had assumed that the script would have only downloaded the amount of data that was returned, but my script downloaded a cumulative 2.5gig before i noticed. Hopefully no-one else will have this happen.
up
1
hello at ivanbogomolov dot ru
5 years ago
If you logic based on compare structure strings, you must compare it case insensetive.
<?php

$p
= imap_fetchstructure($this->_imap_resource, $mid);
//do not compare $p->disposition == 'INLINE'
if(preg_match('/inline/i', $p->disposition))
{
//this works
}
?>
up
1
alchrystal88 at web dot de
5 years ago
If you have errors with wrong attachment names like this:

correct name:
String -> Prüfbericht Hersteller.pdf

fetchstructure object name:
=?ISO-8859-1?Q?Pr=FCfbericht_Hersteller=2Epdf?=

Workaround to reconvert:

imap_mime_header_decode($fetchstructure->dparameters->value)[0]->text

imap_mime_header_decode($filename)[0]->text
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2
es96 at hotmail dot com
21 years ago
If you are getting CHARSET as US-ASCII even if the header has a Content-Type: field, make sure the header also has a MIME-Version: field.

For example, the following header will correcty report charset as KOI8-R

MIME-Version: 1.0
Content-Type: text/plain; charset="koi8-r"

Without the MIME-Version it will be reported as US-ASII
up
2
jcastro at elnuevodia dot com
22 years ago
I think the above note about attachments is wrong. I tested sending files with and without attachments and I get the following<br>
with attachment: type=3 bytes=343648
no attachment: type=0 bytes=2
so checking for $struct->bytes == " " means nothing. At least in my test
running windows 2000, php4.2.1 using outlook and exchange. It seems that cheking the type will be more reliable
up
2
hholzgra at media-engineering dot de
24 years ago
the parts objects are identical in
structure to those returned by imap_fetchstructure, describing one subfolder each

parameters and dparameters are MIME-specific, theese contain the
extra parameters provided in the Content-Type and Content-Disposion Header lines such as Charset or Filename
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