# imap_headerinfo

(PHP 4, PHP 5, PHP 7)

imap_headerinfo — Read the header of the message

### 说明

imap_headerinfo ( resource `$imap_stream` , int `$msg_number` [, int `$fromlength` = 0 [, int `$subjectlength` = 0 [, string `$defaulthost` = `NULL` ]]] ) : object

Gets information about the given message number by reading its headers.

### 参数

`imap_stream`

  由 imap_open() 返回的 IMAP 流。

`msg_number`

  The message number

`fromlength`

  Number of characters for the fetchfrom property. Must be greater than or equal to zero.

`subjectlength`

  Number of characters for the fetchsubject property Must be greater than or equal to zero.

`defaulthost`

### 返回值

Returns `FALSE` on error or, if successful, the information in an object with following properties:

- toaddress - full to: line, up to 1024 characters
- to - an array of objects from the To: line, with the following properties: personal, adl, mailbox, and host
- fromaddress - full from: line, up to 1024 characters
- from - an array of objects from the From: line, with the following properties: personal, adl, mailbox, and host
- ccaddress - full cc: line, up to 1024 characters
- cc - an array of objects from the Cc: line, with the following properties: personal, adl, mailbox, and host
- bccaddress - full bcc: line, up to 1024 characters
- bcc - an array of objects from the Bcc: line, with the following properties: personal, adl, mailbox, and host
- reply_toaddress - full Reply-To: line, up to 1024 characters
- reply_to - an array of objects from the Reply-To: line, with the following properties: personal, adl, mailbox, and host
- senderaddress - full sender: line, up to 1024 characters
- sender - an array of objects from the Sender: line, with the following properties: personal, adl, mailbox, and host
- return_pathaddress - full Return-Path: line, up to 1024 characters
- return_path - an array of objects from the Return-Path: line, with the following properties: personal, adl, mailbox, and host
- remail -
- date - The message date as found in its headers
- Date - Same as date
- subject - The message subject
- Subject - Same as subject
- in_reply_to -
- message_id -
- newsgroups -
- followup_to -
- references -
- Recent - R if recent and seen, N if recent and not seen, ' ' if not recent.
- Unseen - U if not seen AND not recent, ' ' if seen OR not seen and recent
- Flagged - F if flagged, ' ' if not flagged
- Answered - A if answered, ' ' if unanswered
- Deleted - D if deleted, ' ' if not deleted
- Draft - X if draft, ' ' if not draft
- Msgno - The message number
- MailDate -
- Size - The message size
- udate - mail message date in Unix time
- fetchfrom - from line formatted to fit `fromlength` characters
- fetchsubject - subject line formatted to fit `subjectlength` characters

### 参见

- imap_fetch_overview() - Read an overview of the information in the headers of the given message