【发布时间】：2017-11-30 15:04:10
【问题描述】：
我正在尝试创建一个标准菜单栏以在我网站的所有页面上使用。
我尝试使用 Create PHP header/footer，但是当我将 Bootstrap 4 导航栏放入时，下拉菜单停止工作
谁能帮忙？
包含标题的代码是
<body>
<?php include("navbar.php"); ?>
<div class="container">
<h1>Home</h1>
</div>
使用 Bootstrap 头和脚本
navbar.php 是
<?php
session_start();
// connect to database
include("connection.php");
?>
<!DOCTYPE html>
<html lang="en">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<title>MWfD Job Control</title>
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" integrity="sha384-rwoIResjU2yc3z8GV/NPeZWAv56rSmLldC3R/AZzGRnGxQQKnKkoFVhFQhNUwEyJ" crossorigin="anonymous">
<!-- MWfD CSS -->
<link rel="stylesheet" type="text/css" href="mwfd.css">
</head>
<body>
<nav class="navbar navbar-toggleable-md navbar-light bg-faded">
<button class="navbar-toggler navbar-toggler-right" type="button" data-toggle="collapse" data-target="#navbarSupportedContent">
<span class="navbar-toggler-icon"></span>
</button>
<a class="navbar-brand" href="#">MWfD v2</a>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav mr-auto">
<li class="nav-item active">
<a class="nav-link" href="index.php">Home</a>
</li>
<li class="nav-item">
<a class="nav-link" href="customerentry.php?customerid=0"><span class="red">Job/Quote Entry</span></a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="http://example.com" id="navbarDropdownMenuLink" data-toggle="dropdown">Quotes</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink">
<a class="dropdown-item" href="reportquotes.php?select=pending">Pending quotes</a>
<a class="dropdown-item" href="reportquotes.php?select=all">All quotes</a>
</div>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="http://example.com" id="navbarDropdownMenuLink" data-toggle="dropdown">Job Progress</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink">
<a class="dropdown-item disabled" href="#">Unpriced jobs</a>
<a class="dropdown-item" href="reportengraving.php">Engraving jobs</a>
<a class="dropdown-item" href="reportlaser.php">Laser jobs</a>
<a class="dropdown-item" href="reportwoodwork.php">Woodwork jobs</a>
</div>
</li>
<li class="nav-item">
<a class="nav-link disabled" href="#">Reports</a>
</li>
</ul>
<form method="post" class="form-inline my-2 my-lg-0">
<input class="form-control mr-sm-2" type="number" id="jobField" name="jobField" placeholder="Job number">
<button class="btn btn-outline-success my-2 my-sm-0" type="submit" id="jobNoSearchBtn" name="searchBtn">Search</button>
</form>
</div>
</nav>
<!-- jQuery first, then Tether, then Bootstrap JS. -->
<script src="https://code.jquery.com/jquery-3.1.1.slim.min.js" integrity="sha384-A7FZj7v+d/sdmMqp/nOQwliLvUsJfDHW+k9Omg/a/EheAdgtzNs3hpfag6Ed950n" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.4.0/js/tether.min.js" integrity="sha384-DztdAPBWPRXSA/3eYEEUWrWCy7G5KFbe8fFjk5JAIxUYHKkDx6Qin1DkWx51bBrb" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/js/bootstrap.min.js" integrity="sha384-vBWWzlZJ8ea9aCX4pEW3rVHjgjt7zpkNpZk+02D9phzyeVkE+jo0ieGizqPLForn" crossorigin="anonymous"></script>
</body>
</html>
导航栏是从 Bootstrap 4 导航栏页面复制而来的，如果它留在页面中就可以工作。
【问题讨论】：
-
如果您能提供一些对您有效/无效的代码，这很可能会有所帮助。
-
确保您使用的是最新的 bootstrap 4 版本 (alpha.6)，因为各个 alpha 版本的导航栏都发生了重大变化。
标签： php bootstrap-4