如何使用php实现首页和子页面之间的交互

       	<li <?= $f=='/index.php' ? 'class="navhome"' :''?>><a href="./">首页</a></li>
            <li <?= $f=='/news.php' ? 'class="navhome"' :''?>><a href="news.php">新闻中心</a></li>
            <li <?= $f=='/about.php' ? 'class="navhome"' :''?>><a href="about.php">关于我们</a></li>
            <li <?= $f=='/pro.php' ? 'class="navhome"' :''?>><a href="pro.php">精品工程</a></li>
            <li <?= $f=='/zzry.php' ? 'class="navhome"' :''?>><a href="zzry.php">资质荣誉</a></li>
            <li <?= $f=='/woker.php' ? 'class="navhome"' :''?>><a href="woker.php">员工风采</a></li>
            <li <?= $f=='/guestbook.php' ? 'class="navhome"' :''?>><a href="guestbook.php">在线留言</a></li>
            <li <?= $f=='/job.php' ? 'class="navhome"' :''?>class="navlast"><a href="job.php">诚聘英才</a></li>

只需要把href写上即可实现

来自为知笔记(Wiz)