php - 如何让下面的代码先用php开始，再用html
问题描述
我试图让以下主页正常工作，同时保持必须先放置 php 然后再放置 html 的规则。我试图把整个 html 代码放在最后，但是我的登录功能看起来不同并且没有样式。我正在尝试这样做以避免标头已发送问题，这可能很烦人。即使使用 ob_start() 也不是一直都有帮助......
<?php
ob_start();
session_start();
?>
<!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>
<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>
<div class="item">
<input type="checkbox" id="B" />
<div class="arrow"><i class="fas fa-chevron-circle-down"></i></div><label for="B">Administrator's Section</label>
<ul>
<li><a href="update_database_maintenance.php">Insert Database Maintenance</a></li>
<li><a href="updateexisting_database_maintenance_primer.php">Update Database Maintenance for Primer Level</a></li>
<li><a href="updateexisting_database_maintenance_level1.php">Update Database Maintenance for Level 1</a></li>
<li><a href="updateexisting_database_maintenance_level2.php">Update Database Maintenance for Level2</a></li>
<li><a href="updateexisting_database_maintenance_level3.php">Update Database Maintenance for Level 3</a></li>
<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_create_level1promo.php">Create Level 1 Promotion Competition</a></li>
<li><a href="admin_create_level2promo.php">Create Level 2 Promotion Competition</a></li>
<li><a href="admin_create_level3promo.php">Create Level 3 Promotion Competition</a></li>
<li><a href="level1promo_competitions_participants.php">Display Level 1 Promo Competitions' Participants</a></li>
<li><a href="level2promo_competitions_participants.php">Display Level 2 Promo Competitions' Participants</a></li>
<li><a href="level3promo_competitions_participants.php">Display Level 3 Promo Competitions' Participants</a></li>
<li><a href="level1promo_competitions_winner_form.php">Generate Level 1 Promo Competitions' Winner</a></li>
<li><a href="level2promo_competitions_winner_form.php">Generate Level 2 Promo Competitions' Winner</a></li>
<li><a href="level3promo_competitions_winner_form.php">Generate Level 3 Promo Competitions' Winner</a></li>
<li><a href="admin_students_rewardpoints.php">Display Students' Reward points</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_students.php">Display Students' Details</a></li>
<li><a href="level1promo.php">Display Level 1 Promo Qualified Users</a></li>
<li><a href="level2promo.php">Display Level 2 Promo Qualified Users</a></li>
<li><a href="level3promo.php">Display Level 3 Promo Qualified Users</a></li>
<li><a href="level1promo_manually_activate.php">Activate Level 1 Promo Competitions Manually</a></li>
<li><a href="level2promo_manually_activate.php">Activate Level 2 Promo Competitions Manually</a></li>
<li><a href="level3promo_manually_activate.php">Activate Level 3 Promo Competitions Manually</a></li>
<li><a href="ticket.php">Ticket Reply</a></li>
<li><a href="contact_moderators.php">Contact Moderators</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">Moderator's Section</label>
<ul>
<li><a href="ticket_moderator.php">Ticket Reply</a></li>
</ul>
</div></li>
<div class="item">
<input type="checkbox" id="D" />
<div class="arrow"><i class="fas fa-chevron-circle-down"></i></div><label for="D">Member's Section</label>
<ul>
<li><div class="sub-item">
<input type="checkbox" id="D-A" />
<div class="arrow"><i class="fas fa-chevron-circle-down"></i></div><label for="D-A">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="download.php">Download Section</a></li>
<li><a href="upload.php">Upload Homework</a></li>
<li><a href="practice_diary_view.php">Practice Diary View</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="update_profile.php">Update Student's Information</a></li>
<li><a href="reward_points.php">Student's Reward Points</a></li>
<li><a href="donation_button.php">Donation</a></li>
<li><a href="review.php">Write a Review</a></li>
<li><a href="ticket_view.php">View Ticket</a></li>
<li><a href="level1promoform.php">Level 1 Promo Form</a></li>
<li><a href="level2promoform.php">Level 2 Promo Form</a></li>
<li><a href="level3promoform.php">Level 3 Promo Form</a></li>
<li><a href="level1promo_competitions.php">Display Level 1 Promo Competitions</a></li>
<li><a href="level2promo_competitions.php">Display Level 2 Promo Competitions</a></li>
<li><a href="level3promo_competitions.php">Display Level 3 Promo Competitions</a></li>
<li><a href="level1promo_competitions_winner_announcement.php">Level 1 Promo Competition Winner</a></li>
<li><a href="level2promo_competitions_winner_announcement.php">Level 2 Promo Competition Winner</a></li>
<li><a href="level3promo_competitions_winner_announcement.php">Level 3 Promo Competition Winner</a></li>
</ul>
</div>
<div class="item">
<input type="checkbox" id="E" />
<div class="arrow"><i class="fas fa-chevron-circle-down"></i></div><label for="E">About PianoCourse101</label>
<ul>
<li><a href="contact.php">Contact Us</a></li>
<li><a href="email_retrieval.php">Retrieve E-mail</a></li>
<li><a href="deleteaccount.php">Delete Account</a></li>
<li><a href="qa.php">Questions and Answers</a></li>
<li><a href="activate.php">Activate Membership</a></li>
<li><a href="databaseprimer.php">Check Database Maintenance for Primer Level</a></li>
<li><a href="databaselevel1.php">Check Database Maintenance for Level 1</a></li>
<li><a href="databaselevel2.php">Check Database Maintenance for Level 2</a></li>
<li><a href="databaselevel3.php">Check Database Maintenance for Level 3</a></li>
<li><a href="reset.php">Change Password</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>
<div class="item">
<input type="checkbox" id="F" />
<div class="arrow"><i class="fas fa-chevron-circle-down"></i></div><label for="F">Signup</label>
<ul>
<li><a href="signup.php">Signup Premium Membership</a></li>
</ul>
</div>
</div>
</head><body>
<header>
<div class="nav-login">
<?php
include_once __DIR__.'/user_information.php';
include_once __DIR__.'/includes/dbh.php';
if ($_SESSION['u_banned'] == 1) {
session_unset();
session_destroy();
header("Location: index.php?signup2=banned");
exit();
} else {
if (isset($_SESSION['u_uid']) && $_SESSION['u_banned'] == 0) {
echo '<form action="includes/logout.php" method="POST" class="logout">
<button type="submit" name="submit">Logout</button>
</form><div class="trophy"><a href="reward_points.php"><i class=" fas fa-trophy fa-4x" title="Click here to view your rewards!"></i></a></div>';
$sql = "SELECT * FROM users WHERE user_uid = ?;";
$stmt = mysqli_stmt_init($conn);
if (!mysqli_stmt_prepare($stmt, $sql)) {
echo 'SQL error';
exit();
} else {
mysqli_stmt_bind_param($stmt, "s", $_SESSION['u_uid']);
mysqli_stmt_execute($stmt);
$result = mysqli_stmt_get_result($stmt);
$resultCheck = mysqli_num_rows($result);
if($resultCheck > 0) {
while ($row = mysqli_fetch_assoc($result)) {
$id = $row['user_id'];
$one = 1;
$sqlImg = "SELECT * FROM profileimg WHERE userid = ? limit 1;";
$stmt = mysqli_stmt_init($conn);
if (!mysqli_stmt_prepare($stmt, $sqlImg)) {
echo 'SQL error';
exit();
} else {
mysqli_stmt_bind_param($stmt, "i", $id);
mysqli_stmt_execute($stmt);
$resultImg = mysqli_stmt_get_result($stmt);
while ($rowImg = mysqli_fetch_assoc($resultImg)) {
// echo "<div class ='user-container'>";
if ($rowImg['status'] == 0) {
$filename = "includes/uploads/profile".$id."*";
$fileinfo = glob($filename);
$fileext = explode(".", $fileinfo[0]);
$fileactualext = $fileext[1];
echo "<img class='profile_picture' src='includes/uploads/profile".$id.".".$fileactualext."?".mt_rand()."'>";
} else {
echo "<img class='default_picture' src='includes/uploads/profiledefault.jpg'>";
}
}
}
}
}
}
$date = strip_tags(date('Y-m-d H:i:s', strtotime("+2 day")));
if ($_SESSION['u_session'] > $date) {
echo 'You have not login for 2 days!';
}
}else {
echo '<form action="includes/login.php" method="POST">
<input type="text" name="uid" placeholder="Username/e-mail">
<input type="password" name="password" placeholder="password">
<button type="submit" name="submit" value="submit">Login</button></form>';
}
}
echo '</div>';
include_once __DIR__.'/footer.php';
解决方案
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