javascript 如果用户登录，则更改引导程序中的导航栏
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Change navbar in bootstrap if user login
提问by nihCC
I have a standard menu, including an option for "logging" in and "create user". What I want is that when either you create a user or you loging the whole navbar menu to change, say, "My user's page" and "logout" instead, how can I do it?
我有一个标准菜单，包括“登录”和“创建用户”的选项。我想要的是，当您创建用户或登录整个导航栏菜单以更改“我的用户页面”和“注销”时，我该怎么做？
<div id="menu">
<nav class="navbar">
<div class="container">
<ul class="nav navbar-nav">
<li class="active"><a href="#"><span class="glyphicon glyphicon-home"> </span> Home</a></li>
<li><a href="#">Descuentos</a></li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">Categories<span class="caret"/></a>
<ul class="dropdown-menu">
<li><a href="#">Cat A</a></li>
<li><a href="#" >Cat B</a></li>
<li><a href="#">Cat C</a></li>
</ul>
</li>
</ul>
<ul class="nav navbar-nav navbar-right">
<li><a href="createaccount.php"><span class="glyphicon glyphicon-user"></span>Create account</a></li>
<li class="dropdown">
<a class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false" href="#"><span class="glyphicon glyphicon-log-in"></span> Login</a>
<ul class="dropdown-menu" role="menu">
<li>
<form class="form-horizontal" role="form" action="tienda.php" method="POST">
<div class="form-group">
<label class="control-label col-md-4" for="nombre">User:</label>
<div class="col-md-8">
<input type="text" class="form-control" name="loginUser" required>
</div>
<label class="control-label col-md-4" for="nombre">Pass:</label>
<div class="col-md-8">
<input type="password" class="form-control" name="loginPass" required> <br>
</div>
<div class="col-md-5"></div>
<button type="submit" class="btn btn-default col-md-5">Log In</button>
</div>
</form>
</li>
</ul>
</li>
</ul>
</div>
</nav>
</div>
Basically, change
基本上，改变
<ul class="nav navbar-nav navbar-right">
<li><a href="createaccount.php"><span class="glyphicon glyphicon-user"></span>Create account</a></li>
<li class="dropdown">
<a class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false" href="#"><span class="glyphicon glyphicon-log-in"></span> Login</a>
<ul class="dropdown-menu" role="menu">
<li>
<form class="form-horizontal" role="form" action="tienda.php" method="POST">
<div class="form-group">
<label class="control-label col-md-4" for="nombre">User:</label>
<div class="col-md-8">
<input type="text" class="form-control" name="loginUser" required>
</div>
<label class="control-label col-md-4" for="nombre">Pass:</label>
<div class="col-md-8">
<input type="password" class="form-control" name="loginPass" required> <br>
</div>
<div class="col-md-5"></div>
<button type="submit" class="btn btn-default col-md-5">Log In</button>
</div>
</form>
</li>
</ul>
</li>
</ul>
to this:
对此：
<ul class="nav navbar-nav navbar-right">
<li class="dropdown">
<a class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false" href="#"><span class="glyphicon glyphicon-user"></span>Nombre USUARIO</a>
<ul class="dropdown-menu" role="menu">
<li><a href="#">Mi página</a></li>
<li><a href="#"><span class="glyphicon glyphicon-shopping-cart"></span> Carrito</a></li>
</ul>
</li>
<li><a href="#"><span class="glyphicon glyphicon-log-out"></span> Logout</a></li>
</ul>
What's the best way to do this?
做到这一点的最佳方法是什么？
采纳答案by jenki221
This is how I usually do it:
这是我通常的做法：
<?php
if($logged_id){
include 'menu_authenticated.php';
}
else{
include 'menu_unauthenticated.php';
}
?>
<?php
if($logged_id){
include 'menu_authenticated.php';
}
else{
include 'menu_unauthenticated.php';
}
?>
And of course, those files will have their menus respectively
//menu_unauthenticated.php
当然，这些文件将分别有它们的菜单 //menu_unauthenticated.php
<ul class="nav navbar-nav navbar-right">
<li><a href="createaccount.php"><span class="glyphicon glyphicon-user"></span>Create account</a></li>
<li class="dropdown">
<a class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false" href="#"><span class="glyphicon glyphicon-log-in"></span> Login</a>
<ul class="dropdown-menu" role="menu">
<li>
<form class="form-horizontal" role="form" action="tienda.php" method="POST">
<div class="form-group">
<label class="control-label col-md-4" for="nombre">User:</label>
<div class="col-md-8">
<input type="text" class="form-control" name="loginUser" required>
</div>
<label class="control-label col-md-4" for="nombre">Pass:</label>
<div class="col-md-8">
<input type="password" class="form-control" name="loginPass" required> <br>
</div>
<div class="col-md-5"></div>
<button type="submit" class="btn btn-default col-md-5">Log In</button>
</div>
</form>
</li>
</ul>
</li>
</ul>
<ul class="nav navbar-nav navbar-right">
<li><a href="createaccount.php"><span class="glyphicon glyphicon-user"></span>Create account</a></li>
<li class="dropdown">
<a class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false" href="#"><span class="glyphicon glyphicon-log-in"></span> Login</a>
<ul class="dropdown-menu" role="menu">
<li>
<form class="form-horizontal" role="form" action="tienda.php" method="POST">
<div class="form-group">
<label class="control-label col-md-4" for="nombre">User:</label>
<div class="col-md-8">
<input type="text" class="form-control" name="loginUser" required>
</div>
<label class="control-label col-md-4" for="nombre">Pass:</label>
<div class="col-md-8">
<input type="password" class="form-control" name="loginPass" required> <br>
</div>
<div class="col-md-5"></div>
<button type="submit" class="btn btn-default col-md-5">Log In</button>
</div>
</form>
</li>
</ul>
</li>
</ul>
//menu_authenticated.php
//menu_authenticated.php
<ul class="nav navbar-nav navbar-right">
<li class="dropdown">
<a class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false" href="#"><span class="glyphicon glyphicon-user"></span>Nombre USUARIO</a>
<ul class="dropdown-menu" role="menu">
<li><a href="#">Mi página</a></li>
<li><a href="#"><span class="glyphicon glyphicon-shopping-cart"></span> Carrito</a></li>
</ul>
</li>
<li><a href="#"><span class="glyphicon glyphicon-log-out"></span> Logout</a></li>
</ul>
<ul class="nav navbar-nav navbar-right">
<li class="dropdown">
<a class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false" href="#"><span class="glyphicon glyphicon-user"></span>Nombre USUARIO</a>
<ul class="dropdown-menu" role="menu">
<li><a href="#">Mi página</a></li>
<li><a href="#"><span class="glyphicon glyphicon-shopping-cart"></span> Carrito</a></li>
</ul>
</li>
<li><a href="#"><span class="glyphicon glyphicon-log-out"></span> Logout</a></li>
</ul>
回答by Drown
For the code below I'll pretend that you have a isLogged()function that returns true if a user is logged in and false if he isn't. This is what you could do in your navbar code :
对于下面的代码，我假设您有一个isLogged()函数，如果用户已登录，则返回 true，如果未登录，则返回 false。这是您可以在导航栏代码中执行的操作：
<?php if(isLogged()): ?>
<li><a href="profile.php">Profile</a></li>
<li><a href="logout.php">Logout</a></li>
<?php else: ?>
<li><a href="login.php">Login</a></li>
<li><a href="register.php">Register</a></li>
<?php endif; ?>
Of course the code in between the PHP conditions can change, you can put your ulelements directly instead of only the lilike I did - it's only for demonstration's purpose.
当然，PHP 条件之间的代码可以更改，您可以ul直接放置元素，而不是li像我那样只放置元素- 这仅用于演示目的。
回答by ILOABN
Not saying this is 'the way' to do it. But it's one option :) That option includes creating some PHP functions. One that outputs the 'logged out' meny, and one that outputs the 'logged in' meny.
并不是说这是做到这一点的“方式”。但这是一种选择 :) 该选项包括创建一些 PHP 函数。一种输出“已注销”功能，另一种输出“已登录”功能。
And then simply instead of having the meny you would have this code:
然后简单地而不是拥有这些代码，您将拥有以下代码：
<?php
if($loggedIn)
renderLoggedInMeny();
else
renderLoggedOutMeny();
?>
These functions could look something like this:
这些函数看起来像这样：
function renderLoggedInMeny() {
echo <<<EOT
<ul class="nav navbar-nav navbar-right">
<li... [and so on]
EOT;
}
