imap_savebody
(PHP 5 >= 5.1.3, PHP 7)
imap_savebody — Save a specific body section to a file
说明
   imap_savebody
    ( resource 
  $imap_stream
   , mixed $file
   , int $msg_number
   [, string $part_number = ""
   [, int $options = 0
  ]] ) : boolSaves a part or the whole body of the specified message.
参数
- 
imap_stream
- 
由 imap_open() 返回的 IMAP 流。 
- 
file
- 
      The path to the saved file as a string, or a valid file descriptor returned by fopen(). 
- 
msg_number
- 
      The message number 
- 
part_number
- 
      The part number. It is a string of integers delimited by period which index into a body part list as per the IMAP4 specification 
- 
options
- 
      A bitmask with one or more of the following: - 
         
          FT_UID- Themsg_numberis 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
   成功时返回 TRUE, 或者在失败时返回 FALSE。