<form action="upload.php" method="post" enctype="multipart/form-data" name="form1" id="form1"> 
  <input type="file" name="file[]" id="file" /> 
  <input type="file" name="file[]" id="file" /> 
  <input type="file" name="file[]" id="file" /> 
  <input type="file" name="file[]" id="file" /> 
  <input type="file" name="file[]" id="file" /> 
  <br /> 
  <input type="submit" name="Yükle" id="Yükle" value="Submit" /> 
</form> 
</br>
<?php
$say=count($_FILES['file']['name']);
for($i=0;$i<=$say;$i++){
	echo $_FILES['file']['name'][$i];
	echo '</br>';
	echo $_FILES['file']['tmp_name'][$i];
	echo '</br>';
	echo $_FILES['file']['size'][$i];
	echo '</br>';
}
?>
Yukardaki kodlara bakarak mantığı kavrayıp sorunu çözebilirsin.