<?php
    ini_set ('display_errors', 'On');
    class mysqldb
    {
        private $result = NULL;
        private $connection = NULL;
        function __construct($host=NULL, $database=NULL, $user=NULL, $pass=NULL)
        {
            $this->connection = mysql_connect($host,$user,$pass) or die("Error bei der Verbindung");
            mysql_select_db($database, $this->connection) or die("Error bei der Datenbank");
        }
        function disconnect()
        {
            if(is_resource($this->connection))
            {
                mysql_close($this->connection);
            }
        }
        function sendquery($query)
        {
            $this->result = mysql_query($query, $this->connection) or die(mysql_errno($this->connection));
        }
        function fetchRow()
        {
            return mysql_fetch_assoc($this->result) or die(mysql_errno($this->connection));
        }
    }
    $mysql1 = new mysqldb("localhost", "database", "user", "pass");
    $mysql1->sendquery("SELECT * FROM a");
    while($row = $mysql1->fetchRow())
    {
        echo $row["id"];
    }
?>