<?
class db {
	
	var $dbhost;
	var $dbuser;
	var $dbpass;
	var $dbname;
	var $dbtype="mysql";

	var $dbobject;

	function db () {
		global $dbhost;
		global $dbuser;
		global $dbpass;
		global $dbname;
		switch ($this->dbtype) {
			case 'mysql' :
				$this->dbhost = $dbhost;
				$this->dbuser = $dbuser;
				$this->dbpass = $dbpass;
				$this->dbname = $dbname;
				$this->dbtype = "mysql";
				$this->dbobject = new db_mysql($this->dbhost, $this->dbuser, $this->dbpass, $this->dbtype);
			break;
			default : $this->dbobject = new db_mysql($this->dbhost,$this->dbuser,$this->dbpass); 
					  
		}

	}

	function db_connect () {
		
		if ($this->dbobject->connect()) {
			return true;
		}
		
	}	
	
	function db_disconnect () {
		
		$this->dbobject->disconnect();
	}	
		
	function is_connected(){
		
		if ($this->dbobject->is_connected()) {
			return true;
		}
		else {
			return false;
		}
	}
	
	
	function db_query($qry) {
		
		$this->recordset = $this->dbobject->query($this->dbname,$qry);
		

	}
	
	function get_recordset_count(){
		
		if ($this->recordset != null) {
			return $this->dbobject->get_recordset_count($this->recordset);
		}
		else return 0;
	
	}
	
	function get_row(){
		
		if ($this->recordset != null) {
			return $this->dbobject->get_row($this->recordset);
		}
		else return null;
	}

	function recordset_seek($position){
		
		if ($this->recordset != null) {
			return $this->dbobject->recordset_seek($this->recordset,$position);
		}
		else return null;
	}
	
	function getHostName(){
		return $this->dbhost;
	}
	
	function getUserName(){
		return $this->dbuser;
	}

	function getPassword(){
		return $this->dbpass;
	}

	function getDatabaseName(){
		return $this->dbname;
	}
	
	function getLastRecord(){
		return $this->dbobject->get_last_record();
	}

}



class db_mysql extends db {  // reserved for PHP 5.0 // implements dbtypes {
	
	var $dbuser;
	var $dbpass;
	var $dbhost;

	var $db_link;

	function db_mysql($dbhost, $dbuser, $dbpass) {
	
		$this->dbhost = $dbhost;
		$this->dbuser = $dbuser;
		$this->dbpass = $dbpass;

		
	}
	
	function connect() {
		
		$this->db_link = mysql_connect($this->dbhost, $this->dbuser, $this->dbpass)
									  or die( mysql_error() );
		return true;
	}
	
	function disconnect() {
		
		mysql_close($this->db_link);
		
	}
	
	function is_connected(){
		
		if ($this->db_link) {
			return true;
		}
		else {
			return false;
		}
	}
	
	function query($dbname,$qry) {
		
		if ($this->is_connected()) {
			$recordset = mysql_db_query($dbname,$qry);
			
			return $recordset;
		}
	}
	
	function get_recordset_count($recordset){
		
		return mysql_num_rows($recordset);
	
	}

	function get_row($recordset){

		return mysql_fetch_array($recordset);
	
	}

	function recordset_seek($recordset, $position){

		return mysql_data_seek($recordset,$position);
	
	}
	
	function get_last_record(){
		return mysql_insert_id();
	}
}
?>