php multi image uload script

HTML kode 

 <form action="" method="post" enctype="multipart/form-data">
 <p>Pictures:
 <input type="file" name="pictures[]" />
 <input type="file" name="pictures[]" />
 <input type="file" name="pictures[]" />
 <input type="submit" name="doSubmit" value="Send" />
 </p>
 </form>

PHP kode 

 $ext = array("jpg", "gif", "png");
 if(isset($_POST["doSubmit"]){
   foreach ($_FILES["pictures"]["error"] as $key => $error) {
     if ($error == UPLOAD_ERR_OK) {
         $tmp_name = $_FILES["pictures"]["tmp_name"][$key];
         $name = $_FILES["pictures"]["name"][$key];
         if(in_array(array_pop(explode(".", $name)), $ext){
           move_uploaded_file($tmp_name, "data/$name");
         }else{
           //ikke godkedt fil-type
         }
     }
   }
 }

HTML kode 

 <input type="file" name="img[]" />
 <input type="file" name="img[]" />
 <input type="file" name="img[]" />
 <input type="file" name="img[]" />
 <input type="file" name="img[]" />

PHP kode 

 $ext = array("jpg", "gif", "png");
  if(isset($_POST["doSubmit"])){
    include('SimpleImage.php');
    foreach ($_FILES["pictures"]["error"] as $key => $error) {
      if ($error == UPLOAD_ERR_OK) {
          $tmp_name = $_FILES["pictures"]["tmp_name"][$key];
          $name = $_FILES["pictures"]["name"][$key];
          if(in_array(array_pop(explode(".", $name)), $ext)){
           $image = new SimpleImage();
           $image->load($tmp_name);
           $image->resizeToWidth(150);
           $image->save("mappe/$name");
          }else{
            //ikke godkedt fil-type
          }
      }
    }
  }