Hocam çıkan hatalar;

Deprecated: mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in C:\xampp\htdocs\Connections\baglanti.php on line 29

Deprecated: mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in C:\xampp\htdocs\Connections\baglanti.php on line 31

baglanti.php dosyası kodları;

<?php

session_name(substr(md5('http://'.$_SERVER['HTTP_HOST']), 0, 10));
session_start();
error_reporting(E_ALL); 
ini_set('display_errors',1);



$database_baglanti = ['yildiz'];
$server		= "localhost";
$nick		= 'root';
$pass		= '';
$databasename	= 'yildiz';

$conn = mysql_connect('localhost', 'root', '') or die('Error');
mysql_select_db('yildiz', $conn);
$db = mysql_connect('localhost','root','') or die ('Error');

?>