<?php
/** JavaScript like Number class
 * @author  Andrea Giammarchi
 * @license Mit Style
 */
class Number {
    static  protected   $__CLASS__ = __CLASS__;
    protected           $__value__;
    public function __construct($__value__ = 0){
        switch(true){
            case    intval($__value__) === $__value__:
            case    floatval($__value__) === $__value__:
            case    $__value__ instanceof Number:
                $this->__value__ = static::__value__($__value__);
                break;
            default:
                $this->__value__ = (float)$__value__;
                break;
        }
    }
    public function __add($__value__){
        return  new static::$__CLASS__($this->__value__ + static::__value__($__value__));
    }
    public function __sub($__value__){
        return  new static::$__CLASS__($this->__value__ - static::__value__($__value__));
    }
    public function __mul($__value__){
        return  new static::$__CLASS__($this->__value__ * static::__value__($__value__));
    }
    public function __div($__value__){
        return  new static::$__CLASS__($this->__value__ / static::__value__($__value__));
    }
    public function __mod($__value__){
        return  new static::$__CLASS__($this->__value__ % static::__value__($__value__));
    }
    public function __sl($__value__){
        return  new static::$__CLASS__($this->__value__ << static::__value__($__value__));
    }
    public function __sr($__value__){
        return  new static::$__CLASS__($this->__value__ >> static::__value__($__value__));
    }
    public function __bw_or($__value__){
        return  new static::$__CLASS__($this->__value__ | static::__value__($__value__));
    }
    public function __bw_and($__value__){
        return  new static::$__CLASS__($this->__value__ & static::__value__($__value__));
    }
    public function __bw_xor($__value__){
        return  new static::$__CLASS__($this->__value__ ^ static::__value__($__value__));
    }
    public function __is_equal($__value__){
        return  $this->__value__ == static::__value__($__value__);
    }
    public function __is_not_equal($__value__){
        return  $this->__value__ != static::__value__($__value__);
    }
    public function __is_smaller($__value__){
        return  $this->__value__ < static::__value__($__value__);
    }
    public function __is_smaller_or_equal($__value__){
        return  $this->__value__ <= static::__value__($__value__);
    }
    public function __is_greater($__value__){
        return  $this->__value__ > static::__value__($__value__);
    }
    public function __is_greater_or_equal($__value__){
        return  $this->__value__ >= static::__value__($__value__);
    }
    public function __bw_not(){
        return  new static::$__CLASS__(~$this->__value__);
    }
    public function __bool(){
        return $this->__value__ != 0;
    }
    public function __bool_not(){
        return $this->__value__ == 0;
    }
    public function __assign_add($__value__){
        $this->__value__ += static::__value__($__value__);
        return  $this;
    }
    public function __assign_sub($__value__){
        $this->__value__ -= static::__value__($__value__);
        return  $this;
    }
    public function __assign_mul($__value__){
        $this->__value__ *= static::__value__($__value__);
        return  $this;
    }
    public function __assign_div($__value__){
        $this->__value__ /= static::__value__($__value__);
        return  $this;
    }
    public function __assign_mod($__value__){
        $this->__value__ %= static::__value__($__value__);
        return  $this;
    }
    public function __assign_sl($__value__){
        $this->__value__ <<= static::__value__($__value__);
        return  $this;
    }
    public function __assign_sr($__value__){
        $this->__value__ >>= static::__value__($__value__);
        return  $this;
    }
    public function __assign_concat($__value__){
        throw new Exception('unable to concatenate "'.$__value__.'" with a value of an instanceof '.static::$__CLASS__);
    }
    public function __assign_bw_or($__value__){
        return  new static::$__CLASS__($this->__value__ | static::__value__($__value__));
    }
    public function __assign_bw_and($__value__){
        return  new static::$__CLASS__($this->__value__ & static::__value__($__value__));
    }
    public function __assign_bw_xor($__value__){
        return  new static::$__CLASS__($this->__value__ ^ static::__value__($__value__));
    }
    public function __pre_inc(){
        ++$this->__value__;
        return  $this;
    }
    public function __pre_dec(){
        --$this->__value__;
        return  $this;
    }
    public function __post_inc(){
        return  new static::$__CLASS__($this->__value__++);
    }
    public function __post_dec(){
        return  new static::$__CLASS__($this->__value__--);
    }
    public  function    __toString(){
        return  (string)$this->__value__;
    }
    static  protected   function    __value__($__value__){
        return  $__value__ instanceof Number ? $__value__->__value__ : $__value__;
    }
    public  function    toExponential($decimal = 0){
        return  sprintf(func_num_args() ? '%.'.$decimal.'e' : '%e', $this->__value__);
    }
    public  function    toFixed($decimal = 0){
        return  (string)(0 < func_num_args() ?
                round($this->__value__ * ($decimal = pow(10, $decimal))) / $decimal :
                round($this->__value__)
        );
    }
    public  function    toPrecision($decimal = 0){
        if(0 < func_num_args()){
            $length = strlen((int)$this->__value__);
            if($decimal < $length)
                $result = $this->toExponential($decimal);
            elseif(strlen($this->__value__) <= $decimal)
                $result = str_pad($this->__value__, $decimal, '0', STR_PAD_RIGHT);
            else
                $result = $this->toFixed($decimal - $length);
        }
        else
            $result = (string)$this->__value__;
        return  $result;
        return  sprintf(func_num_args() ? '%.'.$decimal.'e' : '%e', $this->__value__);
    }
    public function toLocaleString(){
        return  is_int($this->__value__) ?
                (string)$this->__value__ :
                number_format($this->__value__, strlen($this->__value__) - strpos($this->__value__, '.') - 1)
        ;
    }
    public function toSource(){
        return  'new Number('.$this->__value__.')';
    }
    public function toString(){
        return  (string)$this->__value__;
    }
    public function valueOf(){
        return  $this->__value__;
    }
}

/**
 * possible extensions
 */
class Int extends Number {
    static protected $__CLASS__ = __CLASS__;
    public function __construct($__value__ = 0){
        $this->__value__ = static::__value__($__value__);
    }
    static  protected   function    __value__($__value__){
        return  intval($__value__ instanceof Number ? $__value__->__value__ : $__value__);
    }
}

class Float extends Number {
    static protected $__CLASS__ = __CLASS__;
    public function __construct($__value__ = 0){
        $this->__value__ = static::__value__($__value__);
    }
    static  protected   function    __value__($__value__){
        return  floatval($__value__ instanceof Number ? $__value__->__value__ : $__value__);
    }
}
?>