imap_fetchheader
(PHP 4, PHP 5)
imap_fetchheader — Returns header for a message
Description
string imap_fetchheader
( resource
$imap_stream
, int $msg_number
[, int $options = 0
] )This function causes a fetch of the complete, unfiltered » RFC2822 format header of the specified message.
Parameters
-
imap_stream -
An IMAP stream returned by imap_open().
-
msg_number -
The message number
-
options -
The possible
optionsare:-
FT_UID- Themsgnoargument is a UID -
FT_INTERNAL- The return string is in "internal" format, without any attempt to canonicalize to CRLF newlines -
FT_PREFETCHTEXT- The RFC822.TEXT should be pre-fetched at the same time. This avoids an extra RTT on an IMAP connection if a full message text is desired (e.g. in a "save to local file" operation)
-
Return Values
Returns the header of the specified message as a text string.
See Also
- imap_fetch_overview() - Read an overview of the information in the headers of the given message
- PHP Руководство
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Коментарии
<?PHP
$headers=imap_fetchheader($imap, $msgid);
preg_match_all('/([^: ]+): (.+?(?:\r\n\s(?:.+?))*)\r\n/m', $headers, $matches);
?>
Works quite well for splitting headers,
$matches will contain 3 arrays:
$matches[0] are the full-lines (To: Jille@devnull.quis.cx\r\n)
$matches[1] will be the header (To)
$matches[2] will be the value (Jille@devnull.quis.cx)
In multi-line values the 'multilining is not stripped!'
this could be achieved with something like:
<?PHP
preg_replace('/\r\n\s+/m', '', $matches[2]);
?>
Interesting that imap_headerinfo() does not allow a UID for the $msg_number field like all other fetching functions seem to allow.
If you want to use a UID to fetch the headers, use this two-step process:
<?php
/*
* assumes $mbox is your stream, and $uid is set
* properly. Proper error checking is up to you.
*/
$hText = imap_fetchbody($mbox, $uid, '0', FT_UID);
$headers = imap_rfc822_parse_headers($hText);
?>
The result is the same as the output of imap_headerinfo(), but you get to use the UID.