(PHP 3 >= 3.0.15, PHP 4, PHP 5)
imap_utf7_encode -- 
     Converts ISO-8859-1 string to modified UTF-7 text
    
Description
string 
imap_utf7_encode ( string data )
     Converts data to modified UTF-7
     text. Note that data is expected to be
     encoded in ISO-8859-1.
    
     This is needed to encode mailbox names that contain certain
     characters which are not in range of printable ASCII characters.
    
     The modified UTF-7 encoding is defined in RFC 2060, section 5.1.3
     (original UTF-7 was defined in RFC1642).
    
     See also: imap_utf7_decode().