}
// Check file size
if ($_FILES["fileToUpload"]["size"] > 500000) {
    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.";
    $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 (file_exists($oldImage)) {
        unlink($oldImage);
    }
    if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target_file)) {
        try {
            PortfolioDAO::updatePhoto($code, $target_file);
            redirect_to("EditPortfolio.php?code=" . $code);
        } catch (Exception $e) {
            echo $e->getMessage();
        }
        //        echo "The file ". basename( $_FILES["fileToUpload"]["name"]). " has been uploaded.";
    } else {
        echo "Sorry, there was an error uploading your file.";
    }
}