public static function convertUTF8($string)
    {
        //$sampleString = 'u0986u09a8u09c7u09beu09dfu09beu09b0 u09b9u09c7u09beu09b8u09beu0987u09a8';
        $string = preg_replace('/u([0-9a-fA-F]+)/', '&#x$1;', $string);
        return html_entity_decode($string, ENT_COMPAT, 'UTF-8');
    }