Paste code

echo "<div class='container'>";
    echo "<h3>Tabs</h3>";
    echo "<ul class='nav nav-tabs'>";
    echo "<li class='active'><a href='#'>Highlights</a></li>";
    echo "<li><a  onclick='getRestaurantReviews(" . ($result['res_id']) . ")'>Reviews</a></li>";
    echo "</ul>";
    echo "<br>";

    echo "</div>";

    echo "<h2  class='text-center review_header'>Reviews</h2>";
    echo "<div class='reviews overflow-auto'>";
    //getting reviews data by res_id
    getRestaurantHighlights($result['res_id']);

    echo "</div>";
    echo "</div>";