当用户尚未登录导航菜单时如何使用会话变量
[英]how to use session variable when the user is not logged in yet for navigation menu
问题描述
如果用户是管理员或主持人或普通用户，我试图在导航菜单中显示不同的内容，但是由于用户未登录，我无法使用会话变量，因此我不知道该怎么做在呢
我尝试通过使用会话变量来执行此操作，但随后意识到用户未登录。我假设我必须将其包含在php部分中，以便此功能能够正常工作，因为我想在其中拆分内容。导航菜单
<?php
session_start();
include_once __DIR__.'/includes/dbh.php';
$admin = 1;
$sql = "SELECT * FROM users WHERE admin = ?;";
$stmt = mysqli_stmt_init($conn);
//Prepare the prepared statement
if (!mysqli_stmt_prepare($stmt, $sql)) {
echo 'SQL statement failed';
} else {
//Bind parameters to the placeholder
mysqli_stmt_bind_param($stmt, "i",$admin);
//Run parameters inside database
mysqli_stmt_execute($stmt);
$result = mysqli_stmt_get_result($stmt);
$resultCheck = mysqli_num_rows($result);
if($resultCheck > 0) {
echo '<div class="nav">
<input type="checkbox" id="menu" />
<label for="menu" id="nav-icon">☰</label>
<div class="multi-level">
<div class="item">
<input type="checkbox" id="A" />
<div class="arrow"><i class="fas fa-chevron-circle-down"></i></div><label for="A">Home</label>
<ul>
<li><a href="index.php">Home Page</a></li>
</ul>
</div>
<li><div class="sub-item">
<input type="checkbox" id="B-A" />
<div class="arrow"><i class="fas fa-chevron-circle-down"></i></div><label for="B-A">Administrator\'s Section</label>
<ul>
<li><a href="create_music_cat.php">Create Music Category</a></li>
<li><a href="create_music_sub.php">Create Music Sub Category</a></li>
<li><a href="admin_create_music_topic.php">Create Music Topic</a></li>
<li><a href="admin_nonpremium_users.php">Display Non Premium Users</a></li>
<li><a href="admin_level1_users.php">Display Level 1 Premium Users</a></li>
<li><a href="admin_level2_users.php">Display Level 2 Premium Users</a></li>
<li><a href="admin_level3_users.php">Display Level 3 Premium Users</a></li>
<li><a href="admin_level1_overdue_users.php">Display Level 1 Overdue Users</a></li>
<li><a href="admin_level2_overdue_users.php">Display Level 2 Overdue Users</a></li>
<li><a href="admin_level3_overdue_users.php">Display Level 3 Overdue Users</a></li>
<li><a href="ticket.php">Ticket Reply</a></li>
<li><a href="contact_moderators.php">Contact Moderators</a></li>
</ul>
</div></li>
<div class="item">
<input type="checkbox" id="B" />
<div class="arrow"><i class="fas fa-chevron-circle-down"></i></div><label for="B">Members\' Section</label>
<ul>
<li><div class="sub-item">
<input type="checkbox" id="B-C" />
<div class="arrow"><i class="fas fa-chevron-circle-down"></i></div><label for="B-C">Watch Videos</label>
<ul>
<li><a href="primer.php">Primer Videos</a></li>
<li><a href="level1.php">Level 1 Videos</a></li>
<li><a href="level2.php">Level 2 Videos</a></li>
<li><a href="level3.php">Level 3 Videos</a></li>
</ul>
</div></li>
<li><a href="practice_diary.php">Practice Diary</a></li>
<li><a href="display_music_forum.php">Music Forum</a></li>
<li><a href="update.php">Student\'s General Information</a></li>
<li><a href="reward_points.php">Student\'s Reward Points</a></li>
<li><a href="donation.php">Donation</a></li>
<li><a href="review.php">Write a Review</a></li>
<li><a href="ticket_view.php">View Ticket</a></li>
</ul>
</div>
<div class="item">
<input type="checkbox" id="C" />
<div class="arrow"><i class="fas fa-chevron-circle-down"></i></div><label for="C">About PianoCourse101</label>
<ul>
<li><a href="contact.php">Contact Us</a></li>
<li><a href="qa.php">Questions and Answers</a></li>
<li><a href="activate.php">Activate Membership</a></li>
<li><a href="reset.php">Change Password</a></li>
</ul>
</div>
<div class="item">
<input type="checkbox" id="D" />
<div class="arrow"><i class="fas fa-chevron-circle-down"></i></div><label for="D">Signup</label>
<ul>
<li><a href="signup.php">Signup Premium Membership</a></li>
</ul>
</div>
</div>';
} else {
$moderator = 1;
$sql2 = "SELECT * FROM users WHERE moderator = ?;";
$stmt = mysqli_stmt_init($conn);
//Prepare the prepared statement
if (!mysqli_stmt_prepare($stmt, $sql2)) {
echo 'SQL statement failed';
} else {
//Bind parameters to the placeholder
mysqli_stmt_bind_param($stmt, "i",$moderator);
//Run parameters inside database
mysqli_stmt_execute($stmt);
$result2 = mysqli_stmt_get_result($stmt);
$resultCheck2 = mysqli_num_rows($result2);
if ($resultCheck > 0) {
echo ' <div class="nav">
<input type="checkbox" id="menu" />
<label for="menu" id="nav-icon">☰</label>
<div class="multi-level">
<div class="item">
<input type="checkbox" id="A" />
<div class="arrow"><i class="fas fa-chevron-circle-down"></i></div><label for="A">Home</label>
<ul>
<li><a href="index.php">Home Page</a></li>
</ul>
</div>
<li><div class="sub-item">
<input type="checkbox" id="B-B" />
<div class="arrow"><i class="fas fa-chevron-circle-down"></i></div><label for="B-B">Moderator\'s Section</label>
<ul>
<li><a href="ticket_moderator.php">Ticket Reply</a></li>
<li><a href="token_request_primer.php">Token Request: Primer Level</a></li>
<li><a href="token_request_level1.php">Token Request: Level 1</a></li>
<li><a href="token_request_level2.php">Token Request: Level 2</a></li>
<li><a href="token_request_level3.php">Token Request: Level 3</a></li>
</ul>
</div></li>
<div class="item">
<input type="checkbox" id="B" />
<div class="arrow"><i class="fas fa-chevron-circle-down"></i></div><label for="B">Members\' Section</label>
<ul>
<li><div class="sub-item">
<input type="checkbox" id="B-C" />
<div class="arrow"><i class="fas fa-chevron-circle-down"></i></div><label for="B-C">Watch Videos</label>
<ul>
<li><a href="primer.php">Primer Videos</a></li>
<li><a href="level1.php">Level 1 Videos</a></li>
<li><a href="level2.php">Level 2 Videos</a></li>
<li><a href="level3.php">Level 3 Videos</a></li>
</ul>
</div></li>
<li><a href="practice_diary.php">Practice Diary</a></li>
<li><a href="display_music_forum.php">Music Forum</a></li>
<li><a href="update.php">Student\'s General Information</a></li>
<li><a href="reward_points.php">Student\'s Reward Points</a></li>
<li><a href="donation.php">Donation</a></li>
<li><a href="review.php">Write a Review</a></li>
<li><a href="ticket_view.php">View Ticket</a></li>
</ul>
</div>
<div class="item">
<input type="checkbox" id="C" />
<div class="arrow"><i class="fas fa-chevron-circle-down"></i></div><label for="C">About PianoCourse101</label>
<ul>
<li><a href="contact.php">Contact Us</a></li>
<li><a href="qa.php">Questions and Answers</a></li>
<li><a href="activate.php">Activate Membership</a></li>
<li><a href="reset.php">Change Password</a></li>
</ul>
</div>
<div class="item">
<input type="checkbox" id="D" />
<div class="arrow"><i class="fas fa-chevron-circle-down"></i></div><label for="D">Signup</label>
<ul>
<li><a href="signup.php">Signup Premium Membership</a></li>
</ul>
</div>
</div>';
} else {
$admin = 1;
$moderator = 1;
$sql3 = "SELECT * FROM users WHERE admin = ? AND moderator = ?;";
$stmt = mysqli_stmt_init($conn);
//Prepare the prepared statement
if (!mysqli_stmt_prepare($stmt, $sql3)) {
echo 'SQL statement failed';
} else {
//Bind parameters to the placeholder
mysqli_stmt_bind_param($stmt, "ii",$admin, $moderator);
//Run parameters inside database
mysqli_stmt_execute($stmt);
$result3 = mysqli_stmt_get_result($stmt);
$resultCheck3 = mysqli_num_rows($result3);
if ($resultCheck > 0) {
echo '<div class="nav">
<input type="checkbox" id="menu" />
<label for="menu" id="nav-icon">☰</label>
<div class="multi-level">
<div class="item">
<input type="checkbox" id="A" />
<div class="arrow"><i class="fas fa-chevron-circle-down"></i></div><label for="A">Home</label>
<ul>
<li><a href="index.php">Home Page</a></li>
</ul>
</div>
<li><div class="sub-item">
<input type="checkbox" id="B-A" />
<div class="arrow"><i class="fas fa-chevron-circle-down"></i></div><label for="B-A">Administrator\'s Section</label>
<ul>
<li><a href="create_music_cat.php">Create Music Category</a></li>
<li><a href="create_music_sub.php">Create Music Sub Category</a></li>
<li><a href="admin_create_music_topic.php">Create Music Topic</a></li>
<li><a href="admin_nonpremium_users.php">Display Non Premium Users</a></li>
<li><a href="admin_level1_users.php">Display Level 1 Premium Users</a></li>
<li><a href="admin_level2_users.php">Display Level 2 Premium Users</a></li>
<li><a href="admin_level3_users.php">Display Level 3 Premium Users</a></li>
<li><a href="admin_level1_overdue_users.php">Display Level 1 Overdue Users</a></li>
<li><a href="admin_level2_overdue_users.php">Display Level 2 Overdue Users</a></li>
<li><a href="admin_level3_overdue_users.php">Display Level 3 Overdue Users</a></li>
<li><a href="ticket.php">Ticket Reply</a></li>
<li><a href="contact_moderators.php">Contact Moderators</a></li>
</ul>
</div></li>
<li><div class="sub-item">
<input type="checkbox" id="B-B" />
<div class="arrow"><i class="fas fa-chevron-circle-down"></i></div><label for="B-B">Moderator\'s Section</label>
<ul>
<li><a href="ticket_moderator.php">Ticket Reply</a></li>
<li><a href="token_request_primer.php">Token Request: Primer Level</a></li>
<li><a href="token_request_level1.php">Token Request: Level 1</a></li>
<li><a href="token_request_level2.php">Token Request: Level 2</a></li>
<li><a href="token_request_level3.php">Token Request: Level 3</a></li>
</ul>
</div></li>
<div class="item">
<input type="checkbox" id="B" />
<div class="arrow"><i class="fas fa-chevron-circle-down"></i></div><label for="B">Members\' Section</label>
<ul>
<li><div class="sub-item">
<input type="checkbox" id="B-C" />
<div class="arrow"><i class="fas fa-chevron-circle-down"></i></div><label for="B-C">Watch Videos</label>
<ul>
<li><a href="primer.php">Primer Videos</a></li>
<li><a href="level1.php">Level 1 Videos</a></li>
<li><a href="level2.php">Level 2 Videos</a></li>
<li><a href="level3.php">Level 3 Videos</a></li>
</ul>
</div></li>
<li><a href="practice_diary.php">Practice Diary</a></li>
<li><a href="display_music_forum.php">Music Forum</a></li>
<li><a href="update.php">Student\'s General Information</a></li>
<li><a href="reward_points.php">Student\'s Reward Points</a></li>
<li><a href="donation.php">Donation</a></li>
<li><a href="review.php">Write a Review</a></li>
<li><a href="ticket_view.php">View Ticket</a></li>
</ul>
</div>
<div class="item">
<input type="checkbox" id="C" />
<div class="arrow"><i class="fas fa-chevron-circle-down"></i></div><label for="C">About PianoCourse101</label>
<ul>
<li><a href="contact.php">Contact Us</a></li>
<li><a href="qa.php">Questions and Answers</a></li>
<li><a href="activate.php">Activate Membership</a></li>
<li><a href="reset.php">Change Password</a></li>
</ul>
</div>
<div class="item">
<input type="checkbox" id="D" />
<div class="arrow"><i class="fas fa-chevron-circle-down"></i></div><label for="D">Signup</label>
<ul>
<li><a href="signup.php">Signup Premium Membership</a></li>
</ul>
</div>
</div>';
}
}
}
}
}
}
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>PianoCourse101</title>
<link rel="stylesheet" type="text/css" href="style4.css">
<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.4.2/css/all.css" integrity="sha384-/rXc/GQVaYpyDdyxK+ecHPVYJSN9bmVFBvjA/9eOB+pb3F2w2N6fc5qB9Ew5yIns" crossorigin="anonymous">
</head>
<body>
0 个解决方案
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[英]WordPress: Switch navigation when user is logged in.... but only one the main nav menu in the header
如果用户未登录，则转发浏览器的代码（检查 session 变量 isset 是否未触发）
[英]Code to forward browser if user is not logged in (checking if session variable isset) is not firing
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