please, i have a probleme in uploading images In fact, there is my code : -this is my html form :
            <div class="galery-upload">
                    <form action="include/galery-upload.inc.php" method="post" enctype="multipart/form-data">
                          <input type="file" name="filename">
                           <button type="submit" name="galery-upload-submit">UPLOAD</button>
                    </form>
                </div>
-this is php code :
 <?php
$conn = mysqli_connect("localhost","root","","imguploads");
session_start();
$useruid =  $_SESSION['useruid'];
if (isset($_POST['galery-upload-submit'])) {
    $file = $_FILES['file'];
    if (empty($file)) {
        echo "no exist file";
    }
    else {
    $filename = $_FILES['file']['name'];
    $fileTmpName = $_FILES['file']['tmp_name'];
    $fileSize = $_FILES['file']['size'];
    $fileExt = explode('.',$filename);
    $fileActualExt = end($fileExt);
    $fileNameNew = "galery".".".uniqid($useruid, true).".".$fileActualExt ;
    $folder = "C:/xampp2/htdocs/miniprojet/galery/".$fileNameNew;
    move_uploaded_file($fileTmpName, $folder);
    }}
    ?> 
and get this error : Notice: Undefined index: file in C:\xampp2\htdocs\miniprojet\include\galery-upload.inc.php on line 6 no exist file
Any solutions please !!!!!
 
    