函数的索引满足 php

>indexOf干什么？我只是将其添加到PHP代码中并更改了我的文件名（从index.html更改为homepage.php），并将<a href="index.html" >更改为<a href="?r=site/index">，然后类active将无法正常工作。

触发此错误的原因是什么？

.HTML

<nav class="main-navi">
    <ul>
        <li>
            <a href="index.html" >
                Home
                <span class="dot"></span>
                <span class="corner"></span>
            </a>
        </li>
        <li>
            <a href="portfolio.html">
                Portfolio
                <span class="dot"></span>
                <span class="corner"></span>
            </a>
        </li>
        <li>
            <a href="about.html">
                About
                <span class="dot"></span>
                <span class="corner"></span>
            </a>
        </li>
        <li>
            <a href="service.html">
                services
                <span class="dot"></span>
                <span class="corner"></span>
            </a>
        </li>
        <li>
            <a href="blog.html">
                Blog
                <span class="dot"></span>
                <span class="corner"></span>
            </a>
        </li>
        <li>
            <a href="contact.html">
                contacts
                <span class="dot"></span>
                <span class="corner"></span>
            </a>
        </li>
    </ul>
    <em id="showHideMenu" class="show-hide-menu fa fa-bars" href="#"></em>
</nav>

.JS

var loc = window.location.pathname;
$('.main-navi ul li a').each(function () {
    var status = loc.indexOf($(this).attr('href')) > -1;
    $(this).toggleClass('active', status);
});