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Paparan kod penuh papan mesej pembangunan PHP

Halaman senarai: 

<?php
session_start();
header("content-type:text/html;charset=utf-8");
//连接数据库
$link = mysqli_connect("localhost","root","root","message");
mysqli_set_charset($link,"utf8");
if (!$link) {
 die("连接失败: " . mysqli_connect_error());
}
//连接数据库
$SQL = "SELECT * FROM DETAILS";//设置查询指令
$result=mysqli_query($link,$sql);//执行查询
?>
<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta  charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no">
    <meta name="format-detection" content="telephone=no" />
    <title>留言板</title>
    <style>
 .top{
            width:410px
 }
        .fl{
            float:left
 }
        .klytd {width:100px;
 text-align:left
 }
    </style>
</head>
<body>
<div style="margin:0px auto;" class="top">
 <!--头部图片-->
 <div class="head">
        <img style="width:400px" src="https://img.php.cn/upload/course/000/000/007/5816db62346b9319.jpg">
    </div>
 <!--中间内容-->
 <div class="body">
        <div style="width:400px;" class="fl font">
            <div style="margin:0px auto;" class="keleyitable"><h2>留言列表</h2>
                <form method="post" action="list.php">
 <?php while($row=mysqli_fetch_assoc($result)):?>
 <table>
   <tr><td class="klytd">留言时间：</td><td class="hvttd"><?php echo $row['time'];?></td></tr>
     <p>
     <button type="button" value="回复">
     <a href="reply_list.php?id=<?php echo $row['id'];?>">回复</a>
     </button>
     </p>
    <tr><td class="klytd">留言人：</td><td class ="hvttd"><?php echo $row['name'];?></td></tr>
    <tr><td class="klytd">标题：</td><td class ="hvttd"><?php echo $row['title'];?></td></tr>
    <tr><td class="klytd">内容：</td><td class ="hvttd"><?php echo $row['content'];?></td></tr>
     <tr><td class="klytd">回复：</td><td class="hvttd"><?php echo $row['reply'];?></td></tr>
 </table>
  </form>
  <br/>
  <hr>
 <?php endwhile;?>
 </div>
       <div>
         <button type="button" value="发表留言"><a href="form.html">发表留言</a></button>
       </div>
 </div>
 <!--底部链接与内容-->
 <div>
        </div>
    </div>
</body>
</html>

Halaman mesej: 

<?php
session_start();
header("content-type:text/html;charset=utf-8");
//连接数据库
$link = mysqli_connect("localhost","root","root","message");
mysqli_set_charset($link,"utf8");
if (!$link) {
   die("连接失败: " . mysqli_connect_error());
}
$name = isset($_POST['name'])?$_POST['name']:"";
$title = isset($_POST['title'])?$_POST['title']:"";
$content = isset($_POST['content'])?$_POST['content']:"";
$time = date("Y-m-d H:i:s");


$sql ="insert into details(name,title,content,time) values('$name','$title','$content','$time')";
$rel = mysqli_query($link,$sql);

if($rel){
   echo"留言成功"."<br/><br/>";
   echo"<a href='list.php'>跳转至留言列表页面</a>";
}else{
   echo"留言失败"."<br/><br/>";
   echo"<a href='form.html'>跳转至留言编辑页面</a>";
}
?>
<html>
<head>
   <meta charset="utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no">
   <meta name="format-detection" content="telephone=no" />
   <title>留言板</title>
   <style>
.w410{
           width:410px
}
       .mr_auto{
           margin:0 auto;
}
       .w400{
           width:400px
}
   </style>
</head>
<body>
<div  class="w410 mr_auto">
<!--头部图片-->
<div>
       <img src="https://img.php.cn/upload/course/000/000/007/5816db62346b9319.jpg">
   </div>
   <div style="padding-top: 30px;" class="mr_auto w400">
       <form method="post" name="form1" id="form1" action="message.php">
标题：<input type="text" name="title"><br/><br/>
内容：<textarea style="width:350px;height:200px;" name="content"></textarea><br/><br/>
作者：<input type="text" name="name"><br/><br/>
           <a href=""><input type="submit" style="margin-left:350px" value="提交"></a>
       </form>
   </div>
   </div>
</body>
</html>

Halaman balasan: 

<?php
session_start();
header("content-type:text/html;charset=utf-8");
//连接数据库
$link = mysqli_connect("localhost","root","root","message");
mysqli_set_charset($link,"utf8");
if (!$link) {
   die("连接失败: " . mysqli_connect_error());
}
$id = isset($_GET['id'])?$_GET['id']:"";
$reply = isset($_POST['reply'])?$_POST['reply']:"";

$sql ="update details set reply='$reply' where id=".$id;

$rel = mysqli_query($link,$sql);

if($rel){
   echo"回复成功"."<br/><br/>";
   echo"<a href='list.php'>跳转至留言列表页面</a>";
}else{
   echo"回复失败"."<br/><br/>";
   echo"<a href='reply.html'>跳转至回复编辑页面</a>";
}
?>
<!DOCTYPE html>
<html>
<head>
   <meta charset="UTF-8">
   <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no">
   <meta name="format-detection" content="telephone=no" />
   <title>回复页面</title>
   <style>
.w410{
           width: 410px;
}
       .fon_f{
           font-family: 微软雅黑;
}
       .pt{
           padding-top: 80px;
}

   </style>
</head>

<body>
<div style="margin: 0 auto;"  class="fon_f w410">
<div>
<h1 style= "text-align:center;">留言窗口</h1>
</div>
<div style="margin: 0 auto;" class="pt lh">
   <form name="form1" method="post" action="reply.php?id=<?php echo $_GET['id']?>">
回复:<textarea style="width: 380px;height: 200px;" name="reply"></textarea><br/><br/>
       <input type="submit" value="确认回复">
   </form>
</div>
</div>
</body>
</html>


Meneruskan pembelajaran
||
<?php session_start(); header("content-type:text/html;charset=utf-8"); //连接数据库 $link = mysqli_connect("localhost","root","root","message"); mysqli_set_charset($link,"utf8"); if (!$link) { die("连接失败: " . mysqli_connect_error()); } $id = isset($_GET['id'])?$_GET['id']:""; $reply = isset($_POST['reply'])?$_POST['reply']:""; $sql ="update details set reply='$reply' where id=".$id; $rel = mysqli_query($link,$sql); if($rel){ echo"回复成功"."<br/><br/>"; echo"<a href='list.php'>跳转至留言列表页面</a>"; }else{ echo"回复失败"."<br/><br/>"; echo"<a href='reply.html'>跳转至回复编辑页面</a>"; } ?> <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no"> <meta name="format-detection" content="telephone=no" /> <title>回复页面</title> <style> .w410{ width: 410px; } .fon_f{ font-family: 微软雅黑; } .pt{ padding-top: 80px; } </style> </head> <body> <div style="margin: 0 auto;" class="fon_f w410"> <div> <h1 style= "text-align:center;">留言窗口</h1> </div> <div style="margin: 0 auto;" class="pt lh"> <form name="form1" method="post" action="reply.php?id=<?php echo $_GET['id']?>"> 回复:<textarea style="width: 380px;height: 200px;" name="reply"></textarea><br/><br/> <input type="submit" value="确认回复"> </form> </div> </div> </body> </html>
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