php - get last arguments

/*
Path get last argument

This function returns the last argument (filename or directory name) of an given path.
*/

function path_get_last_arg($path){
    $path = str_replace('\\', '/', $path);
    $path = preg_replace('/\/+$/', '', $path);
    $path = explode('/', $path);
    $l = count($path)-1;
    return isset($path[$l]) ? $path[$l] : '';
}