Einfache MySQL-Klasse

<?php
class database
{

  /**
    * MySQL Server normalerweise "localhost" 
    *
    * @access private
    * @var string 
   */
   private $db_host = 'localhost';  

  /**
    * MySQL User bsp "root" 
    *
    * @access private
    * @var string 
   */
   private $db_user = 'root';  

  /**
    * MySQL Kennwort
    * @access private
    * @var string 
   */
   private $db_pass;

  /**
    * MySQL Datenbank
    *
    * @access private
    * @var string 
   */
   private $db_base;

   
  /**
    * MySQL query
    *
    * @access public
    * @var string 
   */
   public $sql_injection;
  
  /**
    * MySQL-connect
    *
    * @access protected
    * @var string 
   */
   protected $link;

  /**
    * MySQL-select db
    *
    * @access protected
    * @var string 
   */
   protected $select;
   
   
     /**
     * Database : Construct, verbindung zum Server aufbauen
     * @param string $host DB-HOST
     * @param string $user DB-USER
     * @param string $pass DB-PASS
     * @param string $base DB-NAME
     */
     public function __construct($host='', $user='', $pass='', $base='') {  
         
         if (!empty($host) && !empty($user) && !empty($base)) {
              
              $this->db_host = trim($host);
              $this->db_user = trim($user);
              $this->db_pass = trim($pass);
              $this->db_base = trim($base);
                 
                 $this->link = mysql_connect($this->db_host, $this->db_user, $this->db_pass) or die(self::print_error("Verbindungs fehler"));  
                 $this->select = mysql_select_db($this->db_base, $this->link);
         }else {
              self::print_error("MySQL - Verbindung kann nicht hergestellt werden {Connect daten nicht komplett ausgef&uuml;llt");  
         }
           
     }
   
   
     /**
     * mysql_query()
     * @param string $result result
     * @param string $line Fehler line
     * @return string mysql_query($result)
     */
     public function query($result='', $line=0) {  
         
         $this->sql_injection = mysql_query($result) or die(self::print_error("query is false", $line));  
         return($this->sql_injection);
     }
   
   
     /**
     * mysql_fetch_array()
     * @param string $result result
     * @return string mysql_fetch_array($result)
     */
     public function result_array($result='', $assoc=MYSQL_ASSOC) {  
         
         $row = mysql_fetch_array($result);
         return($row);
     }
   
     /**
     * mysql_fetch_assoc()
     * @param string $result result
     * @return string mysql_fetch_array($result)
     */
     public function result_assoc($result='', $assoc=MYSQL_ASSOC) {  
         
         $row = mysql_fetch_array($result, $assoc);
         return($row);
     }
     
   
     /**
     * mysql_fetch_object()
     * @param string $result result
     * @return string mysql_fetch_object($result)
     */
     public function result_object($result='') {  
         
         $row = mysql_fetch_object($result);
         return($row);
     } 
     
   
     /**
     * mysql_num_rows()
     * @param string $result result
     * @return string mysql_num_rows($result)
     */
     public function result_counts($result='') {  
         
         $row = mysql_num_rows($result);
         return($row);
     }
   
   
     /**
     * mysql_insert_id() Letzte Insert kennung ausgeben
     * @return ressourcen
     */
     public function last_insert() {
         
         $row = mysql_insert_id();
         return($row);
     }
   
   
     /**
     * mysql_close() Verbindung beenden
     * @return ressourcen
     */
     public function connect_close() {
         
         mysql_close($this->select);
     }
     
     private function print_error($msg, $line=0) {
         
         $error = "<h3>$msg</h3><hr />";  
         $error .= "SQL error in $line <br />";  
         $error .= "result = ".mysql_error();  
         $error .= "<br />";  
         die($error);  
     }
}
?>

<?php
  include("database.class.php");  
  $db = new database("localhost", "root", "", "php");  
  
//---- mysql_fetch_assoc verwenden
  $res = $db->query("SELECT `name` FROM `news`", __LINE__);  
  $row = $db->result_assoc($res);
  print($row["name"]);  
  
//---- mysql_fetch_assoc mit MYSQL_NUM verwenden
  $res = $db->query("SELECT `name` FROM `news`", __LINE__);  
  $row = $db->result_assoc($res, MYSQL_NUM);
  print($row);
  
  
//---- mysql_fetch_array verwenden
  $res = $db->query("SELECT `name` FROM `news`", __LINE__);  
  $row = $db->result_array($res);
  print($row["name"]);  
  
//---- mysql_fetch_object verwenden
  $res = $db->query("SELECT `name` FROM `news`", __LINE__);  
  $row = $db->result_object($res);
  print($row->name);
  
//---- mysql_num_rows verwenden
  $res = $db->query("SELECT `id` FROM `news`", __LINE__);  
  print($db->result_counts($res));
  
//---- mysql_insert_id verwenden
  $res = $db->last_insert();
  print($res);
  
//---- mysql_close verwenden
  $db->connect_close();
  
?>