model/Navigator.php


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<?php

class Navigator
{
    public function requestContains($route)
    {
        if (strpos($_SERVER['REQUEST_URI'], $route) !== false) {
            return true;
        }
        return false;
    }

    public function isActiveHome()
    {
        if ($_SERVER['REQUEST_URI'] === '/') {
            return 'active ';
        }
        return;
    }

    public function isActive($route)
    {
        if ($_SERVER['REQUEST_URI'] === $route
            || $this->requestContains($route)
        ) {
            return 'active ';
        }
        return;
    }
}