<?php
	if(!defined('PK_MAGIC'))
		die('hack or what?');





	/* */

	class DB
	{
		var $connection_id = false;
		var $result_id = false;





		/* */

        function DB()
        {
			$this->connection_id = false;
			$this->result_id = false;
        }





		/* */

        function connect($db_server, $db_port, $db_name, $db_user, $db_password)
        {
			$this->connection_id = @mysql_connect($db_server . ($db_port == '' ? '' : ':' . $db_port), $db_user, $db_password);
			$this->result_id = false;

			if($this->connection_id && @mysql_select_db($db_name))
			{
                return $this->connection_id;
			}

			return false;
        }





		/* */

		function close()
		{
			if($this->connection_id)
			{
				if(@mysql_close($this->connection_id))
				{
					$this->connection_id = false;
					return true;
				}
			}

			return false;
		}





		/* */

		function query($query_string)
		{
			if($this->result_id = @mysql_query($query_string, $this->connection_id))
			{
				return $this->result_id;
			}

			return false;
		}





		/* */

		function fetch_row($result_id = false)
		{
        	if($this->connection_id)
        	{
                if($result_id == false)
                {
                    $result_id = $this->result_id;
                }

        		if($result_id)
        		{
                    if($row = @mysql_fetch_assoc($result_id))
                    {
                        return $row;
                    }
        		}
        	}

        	return false;
		}





		/* */

		function fetch_rowset($result_id = false)
		{
        	if($this->connection_id)
        	{
                if($result_id == false)
                {
                    $result_id = $this->result_id;
                }

        		if($result_id)
        		{
        			$rowset = array();

					$rows = @mysql_num_rows($result_id);

					while($rows--)
					{
                    	if($row = @mysql_fetch_assoc($result_id))
                    	{
                        	$rowset[] = $row;
                        }
                        else
                        {
                        	return false;
                        }
                    }

       				return $rowset;
        		}
        	}

        	return false;
		}





		/* */

		function free_result($result_id = false)
		{
			if($this->connection_id)
			{
                if($result_id == false)
                {
                    $result_id = $this->result_id;
                    $this->result_id = false;
                }

				if($result_id)
				{
					if(@mysql_free_result($result_id))
					{
						return true;
					}
				}
			}

			return false;
		}





		/* */

        function insert_id()
        {
        	if($this->connection_id)
        	{
                if($insert_id = @mysql_insert_id($this->connection_id))
                {
                    return $insert_id;
                }
            }

        	return false;
        }





		/* */

        function affected_rows()
        {
        	if($this->connection_id)
        	{
                if($affected_rows = @mysql_affected_rows($this->connection_id))
                {
                    return $affected_rows;
                }
            }

        	return false;
        }





		/* */

        function num_rows($result_id = false)
        {
        	if($this->connection_id)
        	{
                if($result_id == false)
                {
                    $result_id = $this->result_id;
                }

        		if($result_id)
        		{
        			if($num_rows = @mysql_num_rows($result_id))
        			{
        				return $num_rows;
        			}
        		}
        	}

        	return false;
        }





		/* */

        function escape($query_string)
        {
        	return mysql_real_escape_string($query_string);
        }





		/* */

        function escape_pattern($query_string)
        {
        	$query_string = str_replace(array('%', '_'), array('\\%', '\\_'), $query_string);
        	$query_string = str_replace(array('*', '?'), array('%', '_'), $query_string);
        	$query_string = mysql_real_escape_string($query_string);

        	return str_replace(array('\\\\%', '\\\\_'), array('\\%', '\\_'), $query_string);
        }





		/* */

        function error()
        {
        	if($this->connection_id)
        	{
                return mysql_error($this->connection_id);
            }

        	return false;
        }
    }
?>