0){ $mod = bcmod($number, 62); $encode .= self::$base62[$mod]; $number = bcdiv(bcsub($number, $mod), 62); } return strrev($encode); } public static function decode($encode, $number = 0){ $length = strlen($encode); $baselist = array_flip(str_split(self::$base62)); for($i = 0; $i $number = bcadd($number, bcmul($baselist[$encode[$i]], bcpow(62, $length - $i - 1))); } return $number; } }
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