PHP if and variable == 1

I need to show or hide a menu nav by checking the menu column == 1. But and is not working. The following code returns nothing (not blank page). If I remove and ($AUTH->user->menu == '1') it works. What am I doing wrong?

<nav id="primary-nav" class="menu-nav">
    <?php if (($menu_nav) && ($AUTH->user->menu == '1')) { ?>
    <ul>
        <?php foreach ($menu_nav as $key => $link) {

            $url = (isset($link['url']) && $link['url']) ? $link['url'] : '#';
            $active = (isset($link['url']) && ($template['active_page'] == $link['url'])) ? ' class="active"' : '';
            $icon = (isset($link['icon']) && $link['icon']) ? '<i class="' . $link['icon'] . '"></i>' : '';

            $li_active = '';

            if (isset($link['sub']) && $link['sub']) {
                foreach ($link['sub'] as $sub_link) {
                    if (in_array($template['active_page'], $sub_link)) {
                        $li_active = ' class="active"';
                        break;
                    }
                }
            }
        ?>
        <li<?php echo $li_active; ?>>
            <a href="<?php echo $url; ?>"<?php echo $active ?>><?php echo $icon . $link['name']; ?></a>
            <?php if (isset($link['sub']) && $link['sub']) { ?>
                <ul>
                    <?php foreach ($link['sub'] as $sub_link) {
                        // Get vital info of sublinks
                        $url = (isset($sub_link['url']) && $sub_link['url']) ? $sub_link['url'] : '#';
                        $active = (isset($sub_link['url']) && ($template['active_page'] == $sub_link['url'])) ? ' class="active"' : '';
                        $icon = (isset($sub_link['icon']) && $sub_link['icon']) ? '<i class="' . $sub_link['icon'] . '"></i>' : '';
                    ?>
                    <li>
                        <a href="<?php echo $url; ?>"<?php echo $active ?>><?php echo $icon . $sub_link['name']; ?></a>
                    </li>
                    <?php } ?>
                </ul>
            <?php } ?>
        </li>
        <?php } ?>
    </ul>
    <?php } ?>
</nav>