Billed viser

PHP kode 

 $mappe = "upload";
 if ($handle = opendir($mappe)) {
   while (false !== ($file = readdir($handle))) {
     if($file != "." && $file != ".."){
       echo "<img src='$mappe/$file' />";
     }
   }
   
   closedir($handle);
 }

Kode 

$cur = isset($_GET['id'])?$_GET['id']:'';
$mappe = "upload";
if ($handle = opendir($mappe)) {
  $next = '';
  $prev = '';
  if($cur != ''){
    while (false !== ($file = readdir($handle))) {
      if(is_file($file)){
        if($cur == $file){
          break;
        }
        $prev = $file;
      }
    }
  }else{
    while (false !== ($file = readdir($handle))) {
      if(is_file($file)){
        $cur = $file;
        break;
      }
    }
  }

  while (false !== ($file = readdir($handle))) {
    if(is_file($file)){
      $next = $file;
      break;
    }
  }
  
  closedir($handle);   
  echo '<img src="'.$mappe/$cur.'" />';
  if($prev != ''){
    echo '<a href="billede.php?id='.$prev.'">Næste billede</a>';
  }
  if($next != ''){
    echo '<a href="billede.php?id='.$next.'">Næste billede</a>';
  }
}