Question

我已经创建了一个登录表单，我也有会话。这工作正常，你也可以看到我登录后可以看到更多按钮。我希望我的登录在右上角切换到用户名，在下拉菜单中我得到一个注销的红色按钮。我一直试图用按钮做一些编码...我<?php include 'buttons.php' ?>。但我无法得到任何工作。

您在左侧看到的退出按钮正在运行，所以问题是更多，我怎样才能在下拉菜单中找到它？

的header.php

<nav class="navbar navbar-default navbar-fixed-top topnav" role="navigation">
        <div class="container topnav">
            <!-- Brand and toggle get grouped for better mobile display -->
            <div class="navbar-header">
                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
                    <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 topnav" href="index.php">Logo</a>
            </div>
            <!-- Collect the nav links, forms, and other content for toggling -->
            <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
                <ul class="nav navbar-nav navbar-right">
                    <li>
                        <a href="#about">About</a>
                    </li>
                    <li>
                        <a href="#services">Services</a>
                    </li>
                    <li>
                        <a href="#contact">Contact</a>
                    </li>
                    <?php include 'buttons.php' ?>

            <!-- Login Form -->
     <ul class="nav navbar-nav navbar-right">
        <li class="dropdown">
          <a href="#" class="dropdown-toggle" data-toggle="dropdown"><b>Login</b> <span class="caret"></span></a>
            <ul id="login-dp" class="dropdown-menu">
                <li>
                     <div class="row">
                            <div class="col-md-12">
                                Login via
                                <div class="social-buttons">
                                    <a href="#" class="btn btn-fb"><i class="fa fa-facebook"></i> Facebook</a>
                                    <a href="#" class="btn btn-tw"><i class="fa fa-twitter"></i> Twitter</a>
                                </div>
                                or
                                 <form class="form" role="form" method="post" action="" accept-charset="UTF-8" id="login-nav">
                                        <div class="form-group">
                                             <label class="sr-only" for="exampleInputEmail2">Email address</label>
                                             <input type="email" name="username" class="form-control" id="exampleInputEmail2" placeholder="Email address" required>
                                        </div>
                                        <div class="form-group">
                                             <label class="sr-only" for="exampleInputPassword2">Password</label>
                                             <input type="password" name="password" class="form-control" id="exampleInputPassword2" placeholder="Password" required>
                                             <div class="help-block text-right"><a href="">Forget the password ?</a></div>
                                        </div>
                                        <div class="form-group">
                                             <button type="submit" name="submit" class="btn btn-primary btn-block">Sign in</button>
                                        </div>
                                        <div class="checkbox">
                                             <label>
                                             <input type="checkbox"> keep me logged-in
                                             </label>
                                        </div>
                                 </form>
                            </div>
                            <div class="bottom text-center">
                                New here ? <a href="join.php"><b>Join Us</b></a>
                            </div>
                     </div>
                </li>
            </ul>
        </li>
      </ul>
           <!-- /.Login Form -->
        </div>
        <!-- /.container -->
    </nav>

profile.php

<body>
    <?php require 'header.php' ?>
<br><br><br><br><br><br><br><br><br>
    <div id="container">
        <div class="topbar">
            <h4 class="hello">Hello, <em><?php echo $_SESSION['username'];?>!</em>
            <a href="logout.php" style="font-size:18px">Logout?</a>
        <a href="test.php">test</a></h4>
        </div>

    </div>
</body>

session.php文件：

<?php
    if( !isset( $_SESSION ) ) session_start();
    if( !isset( $_SESSION['username'] ) ) exit( header('Location: index.php') );
?>

Answer 1

只需在header.php中编写if / else语句：

<ul class="nav navbar-nav navbar-right">
  <li class="dropdown">

  <?php if(!empty($_SESSION['username']): ?>

    <a href="#" class="dropdown-toggle" data-toggle="dropdown"><b>Login</b> <span class="caret"></span></a> </div> 
    ....

  <?php else: ?>
    Whatever you want to display if user is not logged in... </div>
  <?php endif; ?>

Answer 2

这样的事情对你有用：

首先，复制当前的登录菜单，然后将其直接粘贴到自身下方。然后，您将<?php if ( user_is_logged_in() ) { ?>放在第一个<?php } else { ?>之上，<?php } ?>放在第二个之上，if ( user_is_logged_in() ) { // TODO: edit this copy ?> LOGINFORM <? php } else { ?> LOGINFORM <?php }放在第二个之下。然后编辑第一个看起来就像你想要用户登录一样。

所以这个想法是这样的：

<?php

如果您在HTML中使用它，则需要将其包含在?>和header.php中。

以下是.... <?php include 'buttons.php' ?> <?php if ( isset( $_SESSION['username'] ) ) // user is logged in { ?> <ul class="nav navbar-nav navbar-right"> <li class="dropdown"> <a href="#" class="dropdown-toggle" data-toggle="dropdown"> <?php echo $_SESSION['username'];?> </a> ... </ul> <?php } else // not logged in { ?>  <ul class="nav navbar-nav navbar-right"> <li class="dropdown"> <a href="#" class="dropdown-toggle" data-toggle="dropdown"> Login </a> ... </ul>  <?php } ?> ..rest of file：

的更详细示例

library(spatstat)

# Artificial data similar to the question
set.seed(42)
X1 <- rmpoint(100, win = square(10), types = factor(LETTERS[1:5]))
X2 <- rmpoint(100, win = square(10), types = factor(LETTERS[1:5]))

会话注销按钮引导程序

2 个答案: