## index.php

    // Includes
    require_once("includes/class_database.php");

    // Variables
    $fooBar = '111';
    $database = new database();

    // Grab Database
    $query = "SELECT * FROM table WHERE foo_bar = '$fooBar'";
    $result = $database->database_query($query);
    $count = $database->count_rows($result);

    if($count == 0)
    {
        echo 'No results';
        echo $result;
    }

    else
    {
        // ...more code
    }

## includes/class_database.php

<?
/*

	THIS CLASS CONTAINS DATABASE RELATED FUNCTIONS

	FUNCTIONS USED IN THIS CLASS:

		init()					Connects to the server and selects the database

		database_connect()		Connects to the database
		database_select()		Selects the database
		database_query()		Queries the database
		database_error()		Returns the database error
		database_close()		Closes the connection to the database

		count_rows()	Returns the amount of rows in a result

*/

class database
{
	private $db_host = 'localhost';
	private $db_user = 'root';
	private $db_pass = '';
	private $db_name = 'diwa';

	//private $database_connection = $this->database_connect($db_host,$db_user,$db_pass);

	//
	// CONNECTS TO THE SERVER AND SELECTS THE DATABASE
	//

	function init()
 	{
		$this->database_connection = $this->database_connect($this->db_host, $this->db_user, $this->db_pass) or die($this->database_error());
		$this->database_select($this->db_name) or die($this->database_error());

		// This will prevent some problems on MySQL5+ servers
		mysql_query("SET sql_mode='MYSQL40'", $this->database_connection);
	}

  	// END init()





  	//
	// CONNECT TO THE DATABASE
 	//

	function database_connect($db_host, $db_user, $db_pass)
 	{
		return mysql_connect($this->host, $this->user, $this->pass, TRUE);
 	}

 	// END db_connect()






  	//
	// THIS METHOD SELECTS A DATABASE
	//

	function database_select($database_name)
 	{
		return mysql_select_db($this->db_name, $this->database_connection);
 	}

	// END database_select()






	//
	// THIS METHOD QUERIES A DATABASE
	//

	function database_query($query)
	{
		$result = mysql_query($query, $this->database_connection);
		return $result;
	}

	// END db_query()




	//
	// THIS METHOD RETURNS THE DATABASE ERROR
	//

	function database_error()
	{
		return mysql_error($this->database_connection);
	}

	// END database_error()





	//
	// THIS METHOD CLOSES THE CONNECTION TO THE DATABASE SERVER
	//

	function database_close()
	{
		return mysql_close($this->database_connection);
	}

	// END database_close()





  	//
	// THIS METHOD RETURNS THE NUMBER OF ROWS IN A RESULT
	//

	function count_rows($result)
	{
		if( !is_resource($result) ) return FALSE;
		return mysql_num_rows($result);
	}

	// END database_row_count()





}
?>