Problema seleccionar tabla mysql desde php

[marc_lluz]

Hago echo de la variable y me sale correcto lo que le paso a la url

Código:

<?php

$db_host = '****';
$db_user = '****'; 
$db_pwd = '****';

$database = 'galeria';
$table = $_GET["album"];

echo "TABLA: $table" ; 

if (!mysql_connect($db_host, $db_user, $db_pwd))
    die("Can't connect to database");

if (!mysql_select_db($database))
    die("Can't select database");

// This function makes usage of
// $_GET, $_POST, etc... variables
// completly safe in SQL queries
function sql_safe($s)
{
    if (get_magic_quotes_gpc())
        $s = stripslashes($s);

    return mysql_real_escape_string($s);
}

if (isset($_GET['show']))
{
    $id = intval($_GET['show']);

    $result = mysql_query("SELECT ext, UNIX_TIMESTAMP(image_time), data
                             FROM $table
                            WHERE id=$id LIMIT 1");

    if (mysql_num_rows($result) == 0)
        die('no image');

    list($ext, $image_time, $data) = mysql_fetch_row($result);

    $send_304 = false;
    if (php_sapi_name() == 'apache') {
        // if our web server is apache
        // we get check HTTP
        // If-Modified-Since header
        // and do not send image
        // if there is a cached version

        $ar = apache_request_headers();
        if (isset($ar['If-Modified-Since']) && // If-Modified-Since should exists
            ($ar['If-Modified-Since'] != '') && // not empty
            (strtotime($ar['If-Modified-Since']) >= $image_time)) // and grater than
            $send_304 = true;                                     // image_time
    }
	    // outputing Last-Modified header
	    header('Last-Modified: '.gmdate('D, d M Y H:i:s', $image_time).' GMT',
	            true, 200);

	    // Set expiration time +1 year
	    // We do not have any photo re-uploading
	    // so, browser may cache this photo for quite a long time
	    header('Expires: '.gmdate('D, d M Y H:i:s',  $image_time + 86400*365).' GMT',
	            true, 200);

	    // outputing HTTP headers
	    header('Content-Length: '.strlen($data));
	    header("Content-type: image/{$ext}");

	    // outputing image
	    echo $data;
	    exit();
	}

?>