(PHP 4, PHP 5, PHP 7)
imap_utf7_encode — Converts ISO-8859-1 string to modified UTF-7 text
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.
An ISO-8859-1 string.
data encoded with the modified UTF-7
encoding as defined in » RFC 2060,
section 5.1.3 (original UTF-7 was defined in » RFC1642).