[英]Dynamic Bootstrap 4 Navbar "active" tag
i need to change the "active" class depending on the site you are right now when clicking the header.当单击标题时,我需要根据您现在所在的站点更改“活动”类。
Ive seen some examples using a php check if you are on the page "noten.php" and it would change the navbar class to active accordingly, also checked some Javascript like this如果您在页面“noten.php”上,我已经看到一些使用 php 检查的示例,它会相应地将导航栏类更改为活动状态,还检查了一些这样的 Javascript
$('.navbar-nav .nav-link').click(function(){
$('.navbar-nav .nav-item').removeClass('active');
$(this).addClass('active');
}) but nothing worked }) 但没有任何效果
<nav class="navbar navbar-expand-md navbar-dark fixed-top bg-dark">
<a class="navbar-brand" href="/">Projekt</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarCollapse" aria-controls="navbarCollapse" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarCollapse">
<ul class="navbar-nav mr-auto">
<li class="nav-item active">
<a class="nav-link" href="/">Startseite</a>
</li>
<li class="nav-item">
<a class="nav-link" href="/noten.php">Noten</a>
</li>
<li class="nav-item">
<a class="nav-link disabled" href="#">Soon</a>
</li>
</ul>
We don't know much about your PHP logic, but the implementation may be pretty simple:我们不太了解您的 PHP 逻辑,但实现可能非常简单:
<?php
$uri_path = parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH);
$uri_segments = explode('/', $uri_path);
?>
<li class="nav-item <?php echo 'active page-' . $uri_segments[0]; ?>">
<a class="nav-link" href="/">Startseite</a>
</li>
For the url http://foobar/first/second
will add the class page-first
.对于 url http://foobar/first/second
将添加类page-first
。
Ive found a way.我找到了办法。
Adding this at the top of my header include在我的标题顶部添加这个包括
<?php
$pg = basename(substr($_SERVER['PHP_SELF'],0,strrpos($_SERVER['PHP_SELF'],'.'))); // get file name from url and strip extension
?> ?>
and then adding this to the Navbar itself然后将其添加到导航栏本身
<li class="nav-item <?php if($pg=='index'){?>active<?php }?>">
<a class="nav-link" href="/">Startseite</a>
</li>
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