$myfile->open("w+", "demoResc");
    $bytes = $myfile->write("Hello world from Sifang!\n");
    echo "{$bytes} bytes written <br/>\n";
    $myfile->close();
    $myfile->open("r", "demoResc", true);
    $str = $myfile->read(200);
    echo "the file reads: <pre>{$str}</pre>";
    $myfile->close();
    $file_src = new ProdsFile($account, "/tempZone/home/rods/test.php");
    $file_dest = new ProdsFile($account, "/tempZone/home/rods/test.sifang.txt");
    //$file_src->cpMeta($file_dest);
    foreach ($file_dest->getMeta() as $meta) {
        echo "{$file_dest->path_str}: {$meta->name}; {$meta->value}; {$meta->units} <br/> \n";
    }
    $meta = array(new RODSMeta("test1", "1"));
    $files = ProdsPath::queryMeta($account, $meta);
    foreach ($files as $file) {
        echo "{$file} <br/>\n";
    }
    echo "<hr/>";
    $dirs = ProdsPath::queryMeta($account, $meta, 1);
    foreach ($dirs as $dir) {
        echo "{$dir} <br/>\n";
    }
    $file = new ProdsFile($account, "/tempZone/home/rods/test.php");
    var_dump($file->getStats());
    echo "<br/>--- connection successful! #2--- " . microtime() . " <br/>\n";
} catch (RODSException $e) {
    echo $e;
    echo $e->showStackTrace();
}