buildsquery.php

interface BuildsQuery
{
	public function make();
	public function __toString();
}

querystring.php

class QueryString implements BuildsQuery
{
	private $url; 
	private $_queryData;
    
	public function __construct($url, $_queryData)
	{
		$this->url = $url;
		$this->_queryData = $_queryData;
	}
    
	public function make()
	{
		$query = http_build_query($this->_queryData, '');
		return "{$this->url}?{$query}";
	}
	
	public function __toString()
	{
		return $this->make();
	}
}