PHP: Upload more files -

please me php upload problem:

my code:

<?php  if(isset($_post['uploadsubmit'])) {   for($i=0; $i<count($_files['upload']['name']); $i++) {   //get temp file path   $tmpfilepath = $_files['upload']['tmp_name'][$i];    //make sure have filepath    if ($tmpfilepath != ""){     //setup our new file path     $newfilepath = "./images/" . $_files['upload']['name'][$i];      //upload file temp dir     if(move_uploaded_file($tmpfilepath, $newfilepath)) {        //handle other code here      }    }   }  } ?>   <form action="#" method="post" name="uploadimg">  <input type="file" name="upload[]" /><br /> <input type="file" name="upload[]" /><br /><br /> <input type="submit" name="uploadsubmit" value="submit"> </form>  

and problem is:

notice: undefined index: upload in c:\web\php_structure\type\article.php on line 71

line 71:

  for($i=0; $i<count($_files['upload']['name']); $i++) { 

and upload not executed. upload in php.ini on

thanks...