Fetch a particular section of the body of the message

# imap_fetchbody

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

imap_fetchbody — Fetch a particular section of the body of the message

### 说明

function imap_fetchbody(
IMAP\Connection `$imap`,
int `$message_num`,
string `$section`,
int `$flags` = 0
): string|false

Fetch of a particular section of the body of the specified messages. Body parts are not decoded by this function.

### 参数

`imap`
  IMAP\Connection 实例。
`message_num`

  The message number

`section`

  The part number. It is a string of integers delimited by period which index into a body part list as per the IMAP4 specification

`flags`

  A bitmask with one or more of the following:

  - `FT_UID` - The `message_num` is a UID
  - `FT_PEEK` - Do not set the \Seen flag if not already set
  - `FT_INTERNAL` - The return string is in internal format, will not canonicalize to CRLF.

### 返回值

Returns a particular section of the body of the specified messages as a text string, 或者在失败时返回 `false`.

### 更新日志

版本 | 说明
--- | ---
8.1.0 | 现在 `imap` 参数接受 IMAP\Connection 实例，之前接受有效的 `imap` resource。

### 参见

- imap_savebody() - Save a specific body section to a file
- imap_fetchstructure() - Read the structure of a particular message

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