imap_utf7_encode
(PHP 4, PHP 5, PHP 7)
imap_utf7_encode — Converts ISO-8859-1 string to modified UTF-7 text
说明
   imap_utf7_encode
    ( string 
  $data
   ) : string
   Converts data to modified UTF-7 text.
  
This is needed to encode mailbox names that contain certain characters which are not in range of printable ASCII characters.
参数
- 
data
- 
      An ISO-8859-1 string. 
返回值
   Returns data encoded with the modified UTF-7
   encoding as defined in » RFC 2060, 
   section 5.1.3 (original UTF-7 was defined in » RFC1642).