Jeśli katalog zawiera tylko jeden plik, wyświetl...

Kod PHP:
<?php 
$dir = 'data/img/gallery/';
    $handle = opendir($dir);
    $nb = 1;
                        while ( $filename = readdir($handle)) {
                        if( $filename != ".." && $filename != "." && is_dir($dir.$filename) ) {
                echo '<ul class="span2">';
                                            // LOSOWE
                            $directory = ($dir.$filename);
                            $image = array ();
                                 if (is_dir($directory))
                                 {
                                        if ($dh = opendir($directory))
                                        {
                                             while (($file = readdir($dh)) !== false)
                                             {
                                                    if ($file != '...' && $file != '..' && $file != '.')
                                                    {
                                                         $image[] = $file;
                                                         $file = array ('jpg', 'jpeg', 'png', 'gif');
                                                         
                                                    }
                                             }
                                             closedir($dh);
                                             $total = count($image)-1;
                                             $aleatoire = rand(1,1);
                                             $image_afficher = "$image[$aleatoire]";
                                             echo'<li class="thumbnail span">';
                                             // Wynik
                                             print '<a href="index.php?p=manage-photo&g='. $filename  .'"><img src="'. $directory. '/'. $image_afficher . '">';
                                             echo '</a>';
                                             echo '</li>';
                                        }
                                 }
                                echo '<div class=span>';
                echo '<i class="icon-eye-open"></i> <a href="index.php?p=manage-photo&g='. $filename  .'">'.  preg_replace("/-/", " ", $filename) ;
            echo '</a>';
                echo '</div>';
                echo '</ul>';
             
         $gallery[$nb] = $filename;
         $nb++; 
         }
    }            
    global $lang_gal_no_gal;
    if($nb == 1)
        echo "<p class=\"created\">$lang_gal_no_gal</p>";
    
$_SESSION["gallery"] = $gallery;
?>