<?php
$target_dir = "uploads/";
$target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]);
$uploadOk = 1;
$imageFileType = strtolower(pathinfo($target_file,PATHINFO_EXTENSION));

//Debug incoming request headers
//print_r($_SERVER)
//$headers =  getallheaders();
//foreach($headers as $key=>$val)
//{
//  echo $key . ': ' . $val . '<br>';
//}

// Check if image file is a actual image or fake image
if(isset($_POST["submit"])) 
  {
   $check = getimagesize($_FILES["fileToUpload"]["tmp_name"]);
   if($check !== false) 
     {
      echo "File is an image - " . $check["mime"] . ".";
      $uploadOk = 1;
     } else 
     {
      echo "File is not an image.";
      $uploadOk = 0;
     }
   }

// Check if file already exists
if (file_exists($target_file)) 
{
  echo "Overwriting ";
  $uploadOk = 1;
}

// Check file size
if ($_FILES["fileToUpload"]["size"] > 8000000) 
{
  echo "Sorry, your file is too large.";
  $uploadOk = 0;
}

// Allow certain file formats
if($imageFileType != "jpg" && $imageFileType != "png" && $imageFileType != "jpeg" && $imageFileType != "gif" ) 
{
  echo "Sorry, only JPG, JPEG, PNG & GIF files are allowed ( not ".$imageFileType .").";
  echo "Target File".$targetFile." !";
  //$targetFile = "error.jpg"
  $uploadOk = 0;
}

// Check if $uploadOk is set to 0 by an error
if ($uploadOk == 0) 
{
  echo "Sorry, your file was not uploaded.";
 // if everything is ok, try to upload file
} else 
{
  if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target_file)) 
    {
     echo " ". htmlspecialchars( basename( $_FILES["fileToUpload"]["name"])). " uploaded.";
    } else 
    {
     echo "Sorry, there was an error uploading your file.";
    }
}
?>

