Tutorial forum kecil pembangunan PHP laman utama kod lengkap
Buat indeks kod laman utama.php
Halaman ini telah menambah fungsi log masuk, pendaftaran dan keluar, dan menggunakan sesi untuk menentukan sama ada pengguna log masuk
<?php
jika ($_SESSION ['username']){
?>
<a href="?act=loginout">Keluar</a>
<?php }
lain{
?>
<a href="login.html">Log Masuk</a>|<a href="reg.html">Daftar</a>
<? php
}
?>
jika ($_SESSION ['username']){
?>
<a href="?act=loginout">Keluar</a>
<?php }
lain{
?>
<a href="login.html">Log Masuk</a>|<a href="reg.html">Daftar</a>
<? php
}
?>
dan musnahkan sesi
<?php
session_start();
if($_GET['act']=="loginout"){
$ _SESSION ['username']='';
?>
<script>
location.href="?";
</script>
<?
keluar;
}
session_start();
if($_GET['act']=="loginout"){
$ _SESSION ['username']='';
?>
<script>
location.href="?";
</script>
<?
keluar;
}
index.php kod lengkap
<?php
session_start();
if($_GET['act']=="loginout"){
$_SESSION['username']='';
?>
<script>
location.href="?";
</script>
<?
exit;
}
header("Content-type:text/html;charset=utf-8"); //设置编码
$servername = "localhost";
$username = "root";
$password = "root";
$dbname = "mybbs";
// 创建连接
$conn = mysqli_connect($servername, $username, $password, $dbname);
mysqli_set_charset($conn,'utf8'); //设定字符集
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>论坛</title>
<style>
.cen{
width: 55%;
margin: 0 auto;
text-align: right;
margin-top: 30px;
}
table{
width: 55%;
margin-top: 10px;
}
.title{
background-color: #B10707;
font-size: 17px;
color: white;
}
.right{
margin-left: 120px;
}
</style>
</head>
<body>
<div class="cen">
<?php
if($_SESSION['username']){
?>
<a href="?act=loginout">退出</a>
<?php }
else{
?>
<a href="login.html">登录</a>|<a href="reg.html">注册</a>
<?php
}
?>
</div>
<table border="1px" cellspacing="0" cellpadding="8"align="center">
<tr class="title">
<td COLSPAN="3">
论坛列表<span class="right">[<a style="color: white" href="add_forum.php">添加</a> ]</span>
</td>
</tr>
<tr>
<td width="10%"><strong>主题</strong></td>
<td width="40"><strong>论坛</strong></td>
<td width="15"><strong>最后更新</strong></td>
</tr>
<?php
$sql="select * from forums";
$que=mysqli_query($conn,$sql);
$sum=mysqli_num_rows($que);
if($sum>0) {
while ($row = mysqli_fetch_array($que)) {
?>
<tr>
<td><?php echo $row['subject'] ?></td>
<td><?php echo "<div class=\"bold\"><a class=\"forum\" href=\"forums.php?F=" . $row['id'] . "\">" . $row["forum_name"] . "</a></div>"
. $row["forum_description"] ?></td>
<td>
<div><?php echo $row["last_post_time"]?></div>
</td>
</tr>
<?php
}
}else{
echo "<tr><td colspan='3'>对不起，论坛正在建设中，感谢你的关注......</td></tr>";
}
?>
</table>
</body>
</html>
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