Ekşi Duyuru

şu kod hata veriyor. sayfa tamamen hata verdiği için neden verdiğinide göremiyorum. yıllardır yazdığım kod bu. neresinde hata olabilir?
<?php
$db_host="localhost";
$db_username="xxxxxx";
$db_password="xxxxxx";
$db_name="kayıtlar";
mysql_connect("$db_host","$db_username","$db_password")or die ("Host'a Baglanamadim");
mysql_select_db("$db_name")or die("Veritabanina Baglanamadim");
mysql_query("SET CHARACTER SET UTF8");

?>



<div class="row">
<div class="col-sm-12">
<div class="white-box">
<h3 class="box-title m-b-0">KONTROL FORMU</h3>
<p class="text-muted m-b-30">Form </p>
<div class="table-responsive">
<table id="example23" class="table table-striped">
<thead>
<tr>
<th>Tarih</th>
<th>Saat</th>
<th>Kontrol</th>
<th>Yakıt</th>
<th>Yakıt Miktarı</th>
<th>Aydınlatma</th>
<th>Rezistans</th>
<th>Radyatör</th>
<th>Yağ</th>
<th>Akü</th>
<th>Start</th>
<th>Çalışma</th>
<th>Sistem</th>
<th>NO</th>
<th>Kontrol</th>

</tr>
</thead>
<tbody>
<?php
$sorgu=mysql_query("select * from generator");
while($generator=mysql_fetch_array($sorgu))
{
echo '<tr>';
echo '<td>'.$generator['tarih'].'</td>';
echo '<td>00:15</td>';
echo '<td>'.$generator['kontrol'].'</td>';
echo '<td>'.$generator['yakit'].'</td>';
echo '<td>'.$generator['ana_yakit'].'</td>';
echo '<td>'.$generator['aydinlatma'].'</td>';
echo '<td>'.$generator['rezistans'].'</td>';
echo '<td>'.$generator['su_seviye'].'</td>';
echo '<td>'.$generator['yag_miktar'].'</td>'
echo '<td>'.$generator['aku'].'</td>';
echo '<td>'.$generator['start'].'</td>';
echo '<td>'.$generator['calisma'].'</td>';
echo '<td>'.$generator['sistem'].'</td>';
echo '<td>'.$generator['no'].'</td>';
echo '<td>'.$generator['kontrol2'].'</td>';
echo ' </tr>';
}
?>