Installing and upgrading help

Hello Dear Friends...

I have problem of installing the Moodle 3.3+ On my host..

Moodle can't create Data Directory outside of public_html.. 

I contacted to server Administrator and and asked about this issue... They said that it was blocked for the security reason..

So then I decided to change the data directory location.. but install wizard says: "Dataroot location is not secure".. I created the "moodledata" directory in the public_html and chmoded it with "770" and also put there .htaccess file with: order deny,allow deny from all, but the result is the same, can't install...

Now I want to disable data directory check in Moodle installation (of course on my own risk)..

Please help how to disable it (I want moodledata directory inside my public_html)

here is the code where it checks the data directory..

//first time here? find out suitable dataroot

if (is_null($CFG->dataroot)) {

    $CFG->dataroot = __DIR__.'/../moodledata';

    $i = 0; //safety check - dirname might return some unexpected results

    while(is_dataroot_insecure()) {

        $parrent = dirname($CFG->dataroot);

        $i++;

        if ($parrent == '/' or $parrent == '.' or preg_match('/^[a-z]:\\\?$/i', $parrent) or ($i > 100)) {

            $CFG->dataroot = ''; //can not find secure location for dataroot

            break;

        }

        $CFG->dataroot = dirname($parrent).DIRECTORY_SEPARATOR.'moodledata';

    }

    $config->dataroot = $CFG->dataroot;

    $config->stage    = INSTALL_WELCOME;

}

What to change how to disable it..

Thank you very much in Advanced!