How to create a folder with the user's name when uploading a file (IMAGE)? PHP

Good on this occasion I want to make the user of my website login with the option of creating a photo album, and I can get the photo that the user uploads through the form with these codes:

HTML CODE:

  <form action="album.php" enctype="multipart/form-data" method="post">
    
    		<input type="file" name="image">
    
    		<input type="submit" value="Subír" name="upload">
    
    	</form>

PHP CODE:

    <?php 

    session_start();

    $usuario = $_SESSION['user'];

    if (isset($_POST['upload'])) {

        $conexion = mysqli_connect('localhost','root','','image');
        if (!$conexion) {
            die("Error al conectarse a la base de datos.!". mysql_error());
        }
        else{

            $directorio="tmpAlbums/$usuario"; 
            $archivo=$_FILES['image']['tmp_name'];
            $nombrearchivo=$_FILES['image']['name']; 

            move_uploaded_file($archivo, $directorio."/".$nombrearchivo); 

            $directorio=$directorio."/".$nombrearchivo; 
            mysqli_query($conexion, "INSERT INTO imagenes(imagen) 
            VALUES ('{$directorio}')"); 
        }


    }
?>

In the directory variable "$ directory", if it is set after the folder tmpAlbums I insert the variable of the user, it is say, as if it were a folder with the name of that user, but it is obvious that it did not work for me.

Well in question is that, I want to help me that when the user clicks to upload the photo that photo can be moved to the main destination folder plus the user's folder that I want to create to be stored there all your photos.

I wonder if you understand me anyway, in case of doubts I will be aware let me know if there is any doubt about my purpose and thanks in advance.!