Podręcznik PHP
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imap_utf7_encode

(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).