(PHP 4, PHP 5, PHP 7, PHP 8)
imap_utf7_encode — Converts ISO-8859-1 string to modified UTF-7 text
Converts string 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.
stringAn ISO-8859-1 string.
Returns string encoded with the modified UTF-7
encoding as defined in » RFC 2060,
section 5.1.3.
For those who search for a good implementation of modified UTF-7 encoding for IMAP, you can find a code that works on :
http://tananyag.ntszki.hu/mail/functions/imap_utf7_local.php
The result is different from imap-utf7-encode() function and is identical to mailbox name generated by Thunderbird.