This function is currently not documented; only the argument list is available.
Note: This extension is not available on Windows platforms.
Note: This extension has been moved to the PECL repository and is no longer bundled with PHP as of PHP 5.0.0.
To enable Cyrus IMAP support and to use these functions you have to compile PHP with the --with-cyrus option.
The constants below are defined by this extension, and will only be available when the extension has either been compiled into PHP or dynamically loaded at runtime.