move_uploaded_file

Moves an uploaded file to a new location

&reftitle.description; `bool` `move_uploaded_file` `string` `from` `string` `to`

This function checks to ensure that the file designated by `from` is a valid upload file (meaning that it was uploaded via PHP's HTTP POST upload mechanism). If the file is valid, it will be moved to the filename given by `to`.

This sort of check is especially important if there is any chance that anything done with uploaded files could reveal their contents to the user, or even to other users on the same system.

&reftitle.parameters;

`from`

- The filename of the uploaded file.

`to`

- The destination of the moved file.

&reftitle.returnvalues;

Returns &true; on success.

If `from` is not a valid upload file, then no action will occur, and `move_uploaded_file` will return &false;.

If `from` is a valid upload file, but cannot be moved for some reason, no action will occur, and `move_uploaded_file` will return &false;. Additionally, a warning will be issued.

&reftitle.examples;

### Uploading multiple files

    <?php
    $uploads_dir = '/uploads';
    foreach ($_FILES["pictures"]["error"] as $key => $error) {
        if ($error == UPLOAD_ERR_OK) {
            $tmp_name = $_FILES["pictures"]["tmp_name"][$key];
            // basename() may prevent filesystem traversal attacks;
            // further validation/sanitation of the filename may be appropriate
            $name = basename($_FILES["pictures"]["name"][$key]);
            move_uploaded_file($tmp_name, "$uploads_dir/$name");
        }
    }
    ?>

&reftitle.notes;

`move_uploaded_file` is open_basedir aware. However, restrictions are placed only on the `to` path as to allow the moving of uploaded files in which `from` may conflict with such restrictions. `move_uploaded_file` ensures the safety of this operation by allowing only those files uploaded through PHP to be moved.

If the destination file already exists, it will be overwritten.

&reftitle.seealso;

- `is_uploaded_file`
- `rename`
- See Handling file uploads for a simple usage example