<?php 
require('data.inc'); //DB INfos
if(isset($_GET['id']))  //Hole die Bild ID
{ 
      $get_pic_id = $_GET['id']; //Setze Variable
} 
else
{
 echo "<br \>Kein Bild ausgewählt!<br \>";
}
if(isset($_GET['cat_id']))  //Hole Kategorie ID
{ 
      $get_cat_id = $_GET['cat_id']; //Variable
} 
else
{
 echo "<br \>Keine Kategorie ausgewählt!<br \>";
}

$next_id = $get_pic_id+1; //Setze next_id für nächstes Button

$db = mysql_connect($hostname, $username, $password) or die("Unable to connect to MySQL: " . mysql_error()); 
mysql_select_db("$ig_db") or die("DB not found: " . mysql_error()); 
       
$sql = "SELECT id, cat_id, pic_name, pic_path, pic_thumb, pic_comments, pic_viewcount FROM ig_pictures WHERE cat_id ='$get_cat_id' AND id ='$get_pic_id'"; 
$count = "UPDATE ig_pictures SET pic_viewcount = pic_viewcount + 1 WHERE id = '$get_pic_id'"; //Abfrage Viewcount
mysql_query($count);
$res = mysql_query($sql) or die(mysql_error());

while($obj = mysql_fetch_object($res)) 
{ 
Blabla
}
mysql_close($db); 
?>