php - HTML、CSS 导航栏元素通过包含相同文件突出显示，在所有必需页面中包含导航栏

Question

我正在做一个 php 元素，每个链接页面必须有相同的导航栏元素。我通过包含 header.php 文件来做到这一点，该文件包含所有需要导航栏的文件的导航栏代码。当我单击导航栏元素时，它会导航到我提供的相应链接，但是当在导航栏中选择该元素时，我需要保持选择。谁能帮我解决这个问题。

谢谢

header.php

<div class="navbar-header">
  <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
    <span class="sr-only">Toggle navigation</span>
    <span class="icon-bar"></span>
    <span class="icon-bar"></span>
    <span class="icon-bar"></span>
  </button>
  <a class="navbar-brand" href="adminhome.php"><span class="glyphicon glyphicon glyphicon-home"></span> bmfmf</a>
</div>
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
  <ul class="nav navbar-nav">
  <li><a href="totalapplications.php">Applications</a></li>
    <li><a href="student_details.php">Student Details</a></li> 
    <li><a href="renewalstudent_details.php">Renewal Student Details</a></li>
        <li><a href="block.php">Block</a></li>
        <li><a href="roomallotment.php">Allot</a></li>
        <li><a href="deallotsingle.php">De-allot</a></li>
        <li><a href="availability.php">Availability</a></li>                         
        <li><a href="searchallotment.php">Hostel Details view</a></li>
        <li><a href="student_details_master.php">Database</a></li>
  </ul>
  <ul class="nav navbar-nav navbar-right">   
        <li><a href="createadmin.php"><span class="glyphicon glyphicon-user"></span> Create Admin</a></li>
        <li><a href="logout.php"><span class="glyphicon glyphicon-log-out"></span> Logout </a></li>
        </ul>
</div>

Answer 1

有几种方法可以实现，以下是其中一种:

在您的 header.php 文件中添加以下 PHP 代码。

<?php
   function active($currect_page){
        $url_array =  explode('/', $_SERVER['REQUEST_URI']) ;
        $url = end($url_array);  
       if($currect_page == $url){
          echo 'active'; //class name in css 
       } 
   }
 ?>

然后更新您的菜单 HTML 部分，如下所示。

<div class="navbar-header">
  <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
    <span class="sr-only">Toggle navigation</span>
    <span class="icon-bar"></span>
    <span class="icon-bar"></span>
    <span class="icon-bar"></span>
  </button>
  <a class="navbar-brand" href="adminhome.php"><span class="glyphicon glyphicon glyphicon-home"></span> bmfmf</a>
</div>
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
  <ul class="nav navbar-nav">
  <li><a class="<?php active('totalapplications.php');?>" href="totalapplications.php">Applications</a></li>
    <li><a class="<?php active('student_details.php');?>" href="student_details.php">Student Details</a></li> 
    <li><a class="<?php active('renewalstudent_details.php');?>" href="renewalstudent_details.php">Renewal Student Details</a></li>
        <li><a class="<?php active('block.php');?>" href="block.php">Block</a></li>
        <li><a class="<?php active('roomallotment.php');?>" href="roomallotment.php">Allot</a></li>
        <li><a class="<?php active('deallotsingle.php');?>" href="deallotsingle.php">De-allot</a></li>
        <li><a class="<?php active('availability.php');?>" href="availability.php">Availability</a></li>                         
        <li><a class="<?php active('searchallotment.php');?>" href="searchallotment.php">Hostel Details view</a></li>
        <li><a class="<?php active('student_details_master.php');?>" href="student_details_master.php">Database</a></li>
  </ul>
  <ul class="nav navbar-nav navbar-right">   
        <li><a href="createadmin.php"><span class="glyphicon glyphicon-user"></span> Create Admin</a></li>
        <li><a href="logout.php"><span class="glyphicon glyphicon-log-out"></span> Logout </a></li>
        </ul>
</div>

它将为当前页面菜单项添加“active”类。