<?php

/**
 * @package Presentation
 */

class URL {

	var $keys;
	
	function URL($arr = NULL) {
		$this->keys = array();
		if (is_array($arr))
			$this->keys = $arr;
		//var_dump($this->keys);
	}
	
	function get($key) {
		return $this->keys[$key];
	}
	
	function add($key, $value = NULL) {
		$this->keys[$key] = $value;
	}
	
	function get_copy() {
		return new URL($this->keys);
	}
	
	function add_url($url) {
		$this->keys = $this->keys + $url->keys;
	}
	
	function render() {
		if (empty($this->keys))
			return '#';
		$arr = array();
		foreach ($this->keys as $key => $value) {
			$arr[] = "$key=$value";
		}
		$str = '?'.implode('&', $arr);
		//var_dump($str);
		return $str;
	}
	
}

?>