Gets the plugin basename everytime without having to add a path.

WordPress - Plugin basename

function get_plugin_basepath() {

    $path = explode("/", plugin_dir_path(__FILE__));
    $basePath = explode("/", plugin_basename(__FILE__));
    $pathKey = array_search($basePath[0], $path);
    $newArray = array_slice(array_filter($path), 0, $pathKey);
    $fullBasePath = implode("/", $newArray);

    return "/" . $fullBasePath;

}