问该函数不与查询连接到数据库？

EN

function dbquery($link,$query) {

    $result = mysqli_query($link, $query );
    if (!$result) {
        echo mysqli_connect_error();
        return false;
    } else {
        return($result);

    }
    mysqli_close($link);
}

function dbconnect($db_host, $db_user, $db_pass, $db_name) {
    global $db_connect;
    $db_connect = mysqli_connect($db_host, $db_user, $db_pass);
    $db_select = mysqli_select_db($db_connect, $db_name);
    if (!$db_connect) {
        die("<div style='font-family:Verdana;font-size:11px;text-align:center;'><b>Unable to establish connection to MySQL</b><br />".mysqli_connect_error()." : ".mysqli_connect_error()."</div>");
    } elseif (!$db_select) {
        die("<div style='font-family:Verdana;font-size:11px;text-align:center;'><b>Unable to select MySQL database</b><br />".mysqli_connect_error($db_name)." : ".mysqli_connect_error()."</div>");
    }

}
$link = dbconnect($db_host, $db_user, $db_pass, $db_name);

    $locale['global_441'] = "Your account on ".$settings['sitename']."has been banned";
$locale['global_442'] = "Hello [USER_NAME],\n
Your account on ".$settings['sitename']." was caught posting too many items to the system in very short time from the IP ".USER_IP.", and have therefor been banned. This is done to prevent bots from submitting spam messages in rapid succession.\n
Please contact the site administrator at ".$settings['siteemail']." to have your account restored or report if this was not you causing this security ban.\n
".$settings['siteusername'];
// Lifting of suspension
$locale['global_450'] = "Suspension automatically lifted by system";
$locale['global_451'] = "Suspension lifted at ".$settings['sitename'];
$locale['global_452'] = "Hello USER_NAME,\n
The suspension of your account at ".$settings['siteurl']." has been lifted. Here are your login details:\n
Username: USER_NAME
Password: Hidden for security reasons\n
If you have forgot your password you can reset it via the following link: LOST_PASSWORD\n\n
Regards,\n
".$settings['siteusername'];
$locale['global_453'] = "Hello USER_NAME,\n
The suspension of your account at ".$settings['siteurl']." has been lifted.\n\n
Regards,\n
".$settings['siteusername'];
$locale['global_454'] = "Account reactivated at ".$settings['sitename'];
$locale['global_455'] = "Hello USER_NAME,\n
Last time you logged in your account was reactivated at ".$settings['siteurl']." and your account is no longer marked as inactive.\n\n
Regards,\n

$settings = dbarray(dbquery($link,"SELECT * FROM ".$db_prefix."setting"));