script che richiama photo

[Lino80]

Ho questo script

<images>
<?
$dir = "slideshow/";

if (is_dir($dir)) {

    if ($dh = opendir($dir)) {
    
        while (($file = readdir($dh)) !== false) {

            $filetype = substr($file,-3);
            $filetype = strtolower($filetype);
                        
            if ($filetype == "jpg" || $filetype == "gif") { ?>
    <pic>
        <image>slideshow/<? echo $file;?></image>
        <caption><? echo $file;?></caption>
    </pic>
<?            
            }
        }
        closedir($dh);
    }
}
?>
</images>

dovrei sostituire la directory slideshow/ con admin/photos/uploads/thumbs/tn_". $row_photo['location']."

ho provato a fare così:

<images>
<?

    $sql = "select * from photos where ptid = ". $_REQUEST['id'] . " order by porder asc";
    $photo = mysql_query($sql,$myconn) or die(mysql_error()); 
    
    
     // start php to load javascript slide show
    $n = " ";
    
    $count = 0;
    while ($row_photo = mysql_fetch_assoc($photo)) {
        if ($count == 1) {
            $captions .=$n;
            $dir .=$n; 
        }
        else
            $count = $count + 1;
        $captions .= "'".$row_photo['caption']."'" ;
    
$dir = "'admin/photos/uploads/thumbs/tn_". $row_photo['location']."'";

if (is_dir($dir)) {

    if ($dh = opendir($dir)) {
    
        while (($file = readdir($dh)) !== false) {

            $filetype = substr($file,-3);
            $filetype = strtolower($filetype);
                        
            if ($filetype == "jpg" || $filetype == "gif") { ?>
    <pic>
        <image>slideshow/<? echo $file;?></image>
        <caption><? echo $file;?></caption>
    </pic>
<?            
            }
        }
        closedir($dh);
    }
}
?>
</images>

cosa sbaglio? si deve aggiungere la directory anche qui:

<image>slideshow/<? echo $file;?></image>

?