protected function IPLongBaseConvert($long, $fromBase=10, $toBase=36)
    {
        $str = trim($long);
        if (intval($fromBase) != 10) {
            $len = strlen($str);
            $q = 0;
            for ($i=0; $i<$len; $i++) {
                $r = base_convert($str[$i], $fromBase, 10);
                $q = bcadd(bcmul($q, $fromBase), $r);
            }
        } else {
            $q = $str;
        }

        if (intval($toBase) != 10) {
            $s = '';
            while (bccomp($q, '0', 0) > 0) {
                $r = intval(bcmod($q, $toBase));
                $s = base_convert($r, 10, $toBase) . $s;
                $q = bcdiv($q, $toBase, 0);
            }
        } else {
            $s = $q;
        }

        return $s;
    }
protected function IPLongBaseConvert($long, $fromBase=10, $toBase=36)
    {
        $str = trim($long);
        if (intval($fromBase) != 10) {
            $len = strlen($str);
            $q = 0;
            for ($i=0; $i<$len; $i++) {
                $r = base_convert($str[$i], $fromBase, 10);
                $q = bcadd(bcmul($q, $fromBase), $r);
            }
        } else {
            $q = $str;
        }

        if (intval($toBase) != 10) {
            $s = '';
            while (bccomp($q, '0', 0) > 0) {
                $r = intval(bcmod($q, $toBase));
                $s = base_convert($r, 10, $toBase) . $s;
                $q = bcdiv($q, $toBase, 0);
            }
        } else {
            $s = $q;
        }

        return $s;
    }
protected function IPLongBaseConvert ( $ long , $ fromBase = 10 , $ toBase = 36 ) { $ str = trim ( $ long ) ; if ( intval ( $ fromBase ) != 10 ) { $ len = strlen ( $ str ) ; $ q = 0 ; for ( $ i = 0 ; $ i < $ len ; $ i ++ ) { $ r = base_convert ( $ str [ $ i ] , $ fromBase , 10 ) ; $ q = bcadd ( bcmul ( $ q , $ fromBase ) , $ r ) ; } } else { $ q = $ str ; } if ( intval ( $ toBase ) != 10 ) { $ s = '' ; while ( bccomp ( $ q , '0' , 0 ) > 0 ) { $ r = intval ( bcmod ( $ q , $ toBase ) ) ; $ s = base_convert ( $ r , 10 , $ toBase ) . $ s ; $ q = bcdiv ( $ q , $ toBase , 0 ) ; } } else { $ s = $ q ; } return $ s ; }
Convert Long base

@param mixed   $long     IP Long
@param integer $fromBase Input base
@param integer $toBase   Output base

@return string
Convert Long base