Delete album and items related to the album HELP

i do think is a small mistake i making can u please have a look if u can
ok here's the problem i am trying to delete an album within the album should also delete the photos related to that album this what i tried gives this error
Delete image failed. You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 3

my tables are
table albums fields album_id, album_name, album_owner, sub_album
table photos fields, photo_id, photo_name, photo_extension, photo_proper photo_owner, photo_date, photo_comments, photo_size, album_id

photo_proper is the name image stored in folder

<?php

define('ROOT_DIR', './');

define('PROPER', TRUE);

/**

* include common files

*/

include_once(ROOT_DIR. 'includes/common.inc.php');





// No album id has been selected

if (isset($_GET['albums'])) 

   // get the album name since we need to display

   // a message that album 'foo' is deleted

   $result = mysql_query("SELECT album_id, album_name, album_owner, sub_album

                          FROM albums

                          WHERE album_id = $album_id")

             or die('Delete image failed. ' . mysql_error());

   if (mysql_num_rows($result) == 1) {

      $row        = mysql_fetch_assoc($result);

      $album_id  = $row['album_id'];

      $album_name = $row['album_name'];



      // get the image filenames first so we can delete them

      // from the server

      $result = mysql_query("SELECT photo_id, photo_id

                             FROM photos

                             WHERE album_id = $album_id")

                or die(mysql_error());

      while ($row = mysql_fetch_assoc($result)) {

      

    define("GALLERY_IMG_DIR", "./photos/");



      

      unlink(GALLERY_IMG_DIR . $row['photo_proper']);

      unlink(GALLERY_IMG_DIR . 'thumbs/' . $row['photo_proper']);



      }



      $result = mysql_query("DELETE FROM photos

                             WHERE album_id = $album_id")

                or die('Delete image failed. ' . mysql_error());

      $result = mysql_query("DELETE FROM album

                             WHERE album_id = $album_id")

                or die('Delete album failed. ' . mysql_error());



      // album deleted successfully, let the user know about it

      echo "<p align=center>Album '$album_name' deleted.</p>";

   } else {

      echo "<p align=center>Cannot delete a non-existent album.</p>";

   }







?>

PHP:

try 2 error line 5

<?php
define('ROOT_DIR', './');
define('PROPER', TRUE);
/**
* include common files
*/
include_once(ROOT_DIR. 'includes/common.inc.php');


// No album id has been selected
if (isset($_GET['albums'])) 
 {
   // get the image file name so we
   // can delete it from the server
   $sql = "SELECT album_id, album_name, album_owner, sub_album

           FROM albums

           WHERE album_id = {$_GET['albums']}";

   $result = mysql_query($sql)

             or die('Delete photo failed. ' . mysql_error());

   if (mysql_num_rows($result) == 1) {

      $row = mysql_fetch_assoc($result);

      // get the image filenames first so we can delete them
      // from the server
     $sql = "SELECT photo_id, photo_proper

           FROM photos

           WHERE photo_id = {$_GET['photos']}";

   $result = mysql_query($sql)

             or die('Delete photo failed. ' . mysql_error());

   if (mysql_num_rows($result) == 1) {

      $row = mysql_fetch_assoc($result);
      
define("GALLERY_IMG_DIR", "./photos/");

      // remove the image and the thumbnail from the server
      unlink(GALLERY_IMG_DIR . $row['photo_proper']);

      unlink(GALLERY_IMG_DIR . 'thumbs/' . $row['photo_proper']);
      
      // and then remove the database entry

      $sql = "DELETE FROM photos

              WHERE photo_id = {$_GET['photos']}";
      $result = mysql_query("DELETE FROM album
                             WHERE album_id = $album_id")
                or die('Delete album failed. ' . mysql_error());

      // album deleted successfully, let the user know about it
      echo "<p align=center>Album '$album_name' deleted.</p>";
   } else {
      echo "<p align=center>Cannot delete a non-existent album.</p>";
   }

}
}

?>

PHP:

 

Your script failed in the beginning:

   $result = mysql_query("SELECT album_id, album_name, album_owner, sub_album
                          FROM albums
                          WHERE album_id = $album_id")
             or die('Delete image failed. ' . mysql_error());

Code (markup):

$album_id is not set yet so your query failed.

You do have "if (isset($_GET['albums'])) " on top of it but it never assigns any value to $album_id