gistfile1.php

/**
     * @static
     * @param $n
     * @return bool|string
     */
    public static function bdnicenumber($n) {
        $n = (0+str_replace(",","",$n));

        if(!is_numeric($n)) return false;

        if($n>1000000000000) return round(($n/1000000000000),1).'T';
        else if($n>1000000000) return round(($n/1000000000),1).'B';
        else if($n>1000000) return round(($n/1000000),1).'M';
        else if($n>1000) return round(($n/1000),1).'K';

        return number_format($n);

    }