<?php

$image = imagecreatefromstring(file_get_contents($_FILES['image_upload']['tmp_name']));

$exif = exif_read_data($_FILES['image_upload']['tmp_name']);

if(!empty($exif['Orientation'])) {

 switch($exif['Orientation']) {

  case 8:

   $image = imagerotate($image,90,0);

   break;

  case 3:

   $image = imagerotate($image,180,0);

   break;

  case 6:

   $image = imagerotate($image,-90,0);

   break;

 }

}

// $image now contains a resource with the image oriented correctly

?>

onclick="self.location=document.referrer;"