how to insert buttoms both right and left a nav bar in php code example

Example 1: align links to right css

div {
    float: right;
}

Example 2: how to float few menus on the header to right

<nav class="navbar navbar-expand-md navbar-light bg-light">
    <a class="navbar-brand" href="#">Navbar</a>
    <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNav">
        <span class="navbar-toggler-icon"></span>
    </button>
    <div class="collapse navbar-collapse" id="navbarNav">
        <ul class="navbar-nav mr-auto">
            <li class="nav-item active">
                <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
            </li>
            <li class="nav-item">
                <a class="nav-link" href="#">Features</a>
            </li>
            <li class="nav-item">
                <a class="nav-link" href="#">Pricing</a>
            </li>
        </ul>
        <ul class="navbar-nav">
            <li class="nav-item">
                <a class="nav-link" href="{{ url('/login') }}">Login</a>
            </li>
            <li class="nav-item">
                <a class="nav-link" href="{{ url('/register') }}">Register</a>
            </li>
        </ul>
    </div>
</nav>