(PECL eio >= 0.0.1dev)
Read value of a symbolic link.
resource eio_readlink ( string $path, int $pri, callable $callback [, string $data = NULL ] )
Parameters:
path
Source symbolic link path
pri
The request priority: EIO_PRI_DEFAULT, EIO_PRI_MIN, EIO_PRI_MAX, or NULL. If NULL passed, pri internally is set to EIO_PRI_DEFAULT.