Zed:IQuery

interface IQuery
{
	/**
	 * Get the Query
	 * 
	 * @return string Returns the final Query as string
	 */
	public function GetQuery();
}

class SelectQuery implements IQuery
{
	private $_query;
 
	/**
	 * Create an Instance of SelectQuery
	 * 
	 * @param string $table Name of the Table
	 * @param array $keys optional Name of Columns
	 */
	public function __construct($table, $keys=null)
	{
		$columns = ($keys == null ? "*" : implode(",", $keys));
		$this->_query = "SELECT ".$columns." FROM ".$table;
	}
 
	/*
	 * IQuery
	 */
	public function GetQuery() 
	{
		return $this->_query;
	}
	/*
	 * end
	 */
}
 
// USAGE:
$query = new SelectQuery("testtable", Array("column1", "column2"));
echo $query->GetQuery();
// SELECT column1,column2 FROM testtable

// now lets send our IQuery to the sql server
$database = new Database("localhost", "test", "username", "password");
$database->Query($query);