PHP pembangunan papan mesej tutorial penerbitan papan mesej dan paparan

Buat fail "ressage.php"

Kami membahagikan halaman kepada tiga bahagian, satu bahagian diletakkan Kami mempunyai imej latar belakang kami, sebahagian daripadanya adalah untuk memaparkan mesej kami, dan sebahagian daripadanya ialah halaman tempat kami menerbitkan mesej kami

Kami mempunyai tiga Div masing-masing dibentangkan dengan CSS, dan kandungan borang dinilai oleh JS Dalam bahagian mesej, paging telah dilakukan Dalam bahagian mesej, kami menggunakan kesan medan tersembunyi JQ

Kodnya adalah seperti berikut

<?php
session_start();
header("content-type:text/html;charset=utf-8");
$page=isset($_GET['page']) ?$_GET['page'] :1 ;//接收页码
$page=!empty($page) ? $page :1;
$conn=mysqli_connect("localhost","root","root","Ressage");
mysqli_set_charset($conn,'utf8'); //设定字符集
$table_name="ressage_user";//查取表名设置
$perpage=5;//每页显示的数据个数
//最大页数和总记录数
$total_sql="select count(*) from $table_name";
$total_result =mysqli_query($conn,$total_sql);
$total_row=mysqli_fetch_row($total_result);
$total = $total_row[0];//获取最大页码数
$total_page = ceil($total/$perpage);//向上整数
//临界点
$page=$page>$total_page ? $total_page:$page;//当下一页数大于最大页数时的情况
//分页设置初始化
$start=($page-1)*$perpage;
$sql= "select * from ressage_user order by id desc limit $start ,$perpage";
$result=mysqli_query($conn,$sql);
?>
<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>留言板</title>
    <script src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js">
    </script>
    <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" />
    <style>
        /*#left{*/
            /*width: 25%;*/
            /*float: left;*/
        /*}*/
        /*#center{*/
            /*width: 42%;*/
            /*float: left;*/
        /*}*/
        /*#right{*/
            /*width: 32%;*/
            /*float: left;*/
        /*}*/
 .right{
             margin-left: 140px;
         }
        .button{
            background-color: rgba(230, 228, 236, 0.93); /* Green */
 border: none;
            color: #110c0f;
            padding: 10px 70px;
            text-align: center;
            display: inline-block;
            font-size: 16px;
            margin-left: 20px;
            cursor: pointer;
        }
        form{
            font-size: 17px;
        }
        button{
            background-color: rgba(249, 247, 255, 0);
            border: none;
            font-size: 16px;
            color: #551a8b;
            cursor: pointer;
        }
        a{
            text-decoration:none;
        }
        table{
            width: 360px;
            height: 100px;
        }
    </style>
    <script>
        $(document).ready(function(){
            $("button").click(function(){
                $("form").toggle();
            });
        });
        function foo(){
            if(myform.name.value=="")
            {
                alert("请输入你的姓名");
                myform.name.focus();
                return false;
            }
            if (myform.content.value=="")
            {
                alert("留言内容不能为空");
                myform.content.focus();
                return false;
            }
            if(myform.vcode.value==""){
            alert('验证码不能为空');
            myform.vcode.focus();
            return false;
            }
        }
    </script>
</head>
<body>
    <div id="left">
         <img src="https://img.php.cn/upload/image/460/147/285/1477727203382106.jpg" width="370px">
    </div>
    <div id="center">
        <h1>留言内容</h1>
        <p>
            <?
            if($result==null){
 echo"暂时没有留言";
            }  ?>
 </p>
        <?php
        while($row=mysqli_fetch_array($result)){
 ?>
 <table border="1" cellspacing="0">
        <tr>
            <td>姓名：<?php  echo $row['name']?></td>　　
 <td style="text-align: center">留言时间:<?php echo $row['ressage_time']?></td>
            <td><a href="ressage_delete.php?id=<?php echo $row['id']?>" >删除</a> </td>
        </tr>
        <tr>
            <td colspan="3">你的留言:<?php echo $row['content']?></td>
        </tr>
            </table>
<?php
 }?>
 <div id="baner" style="margin-top: 20px">
            <a href="<?php
            echo "$_SERVER[PHP_SELF]?page=1"
 ?>">首页</a>
              <a href="<?php
            echo "$_SERVER[PHP_SELF]?page=".($page-1)
 ?>">上一页</a>
            <!--        显示123456等页码按钮-->
 <?php
            for($i=1;$i<=$total_page;$i++){
 if($i==$page){//当前页为显示页时加背景颜色
 echo "<a  style='padding: 5px 5px;background: #000;color: #FFF' href='$_SERVER[PHP_SELF]?page=$i'>$i</a>";
                }else{
 echo "<a  style='padding: 5px 5px' href='$_SERVER[PHP_SELF]?page=$i'>$i</a>";
                }
            }
 ?>
   <a href="<?php
            echo "$_SERVER[PHP_SELF]?page=".($page+1)
 ?>">下一页</a>
              <a href="<?php
            echo "$_SERVER[PHP_SELF]?page={$total_page}"
 ?>">末页</a>
              <span>共<?php echo $total?>条</span>
        </div>
    </div>
    <div id="right" >
        <h2>留言板</h2>
        <div > <a href="">首页</a> | <button>留言</button> <a href="">管理员登录</a>
              <form method="post" action="ressage_post.php" style="display:none;" onsubmit="return foo();" name="myform" ">
                  <div>
                  <p>
                      姓名：<input type="text" name="name">
                  </p>
                  <p>
                      邮箱：<input type="email" name="email">
                  </p>
                  <p>
                      留言内容：<br/>
                      <textarea cols="30" rows="7" name="content"></textarea>
                  </p>
                      <p>
                          验证码：<input type="text" name="vcode"><img src="yanzhengma.php" onClick="this.src='yanzhengma.php?nocache='+Math.random()" style="cursor:hand">
                      </p>
                      <p>
                          <button>提交留言</button>
                      </p>
                  </div>
              </form>
    </div>
</body>
</html>

Meneruskan pembelajaran

fail baharu

<?php session_start(); header("content-type:text/html;charset=utf-8"); $page=isset($_GET['page']) ?$_GET['page'] :1 ;//接收页码 $page=!empty($page) ? $page :1; $conn=mysqli_connect("localhost","root","root","Ressage"); mysqli_set_charset($conn,'utf8'); //设定字符集 $table_name="ressage_user";//查取表名设置 $perpage=5;//每页显示的数据个数 //最大页数和总记录数 $total_sql="select count(*) from $table_name"; $total_result =mysqli_query($conn,$total_sql); $total_row=mysqli_fetch_row($total_result); $total = $total_row[0];//获取最大页码数 $total_page = ceil($total/$perpage);//向上整数 //临界点 $page=$page>$total_page ? $total_page:$page;//当下一页数大于最大页数时的情况 //分页设置初始化 $start=($page-1)*$perpage; $sql= "select * from ressage_user order by id desc limit $start ,$perpage"; $result=mysqli_query($conn,$sql); ?> <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>留言板</title> <script src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js"> </script> <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" /> <style> /*#left{*/ /*width: 25%;*/ /*float: left;*/ /*}*/ /*#center{*/ /*width: 42%;*/ /*float: left;*/ /*}*/ /*#right{*/ /*width: 32%;*/ /*float: left;*/ /*}*/ .right{ margin-left: 140px; } .button{ background-color: rgba(230, 228, 236, 0.93); /* Green */ border: none; color: #110c0f; padding: 10px 70px; text-align: center; display: inline-block; font-size: 16px; margin-left: 20px; cursor: pointer; } form{ font-size: 17px; } button{ background-color: rgba(249, 247, 255, 0); border: none; font-size: 16px; color: #551a8b; cursor: pointer; } a{ text-decoration:none; } table{ width: 360px; height: 100px; } </style> <script> $(document).ready(function(){ $("button").click(function(){ $("form").toggle(); }); }); function foo(){ if(myform.name.value=="") { alert("请输入你的姓名"); myform.name.focus(); return false; } if (myform.content.value=="") { alert("留言内容不能为空"); myform.content.focus(); return false; } if(myform.vcode.value==""){ alert('验证码不能为空'); myform.vcode.focus(); return false; } } </script> </head> <body> <div id="left"> <img src="https://img.php.cn//upload/image/460/147/285/1477727203382106.jpg" width="370px"> </div> <div id="center"> <h1>留言内容</h1> <p> <? if($result==null){ echo"暂时没有留言"; } ?> </p> <?php while($row=mysqli_fetch_array($result)){ ?> <table border="1" cellspacing="0"> <tr> <td>姓名：<?php echo $row['name']?></td>　　 <td style="text-align: center">留言时间:<?php echo $row['ressage_time']?></td> <td><a href="ressage_delete.php?id=<?php echo $row['id']?>" >删除</a> </td> </tr> <tr> <td colspan="3">你的留言:<?php echo $row['content']?></td> </tr> </table> <?php }?> <div id="baner" style="margin-top: 20px"> <a href="<?php echo "$_SERVER[PHP_SELF]?page=1" ?>">首页</a> <a href="<?php echo "$_SERVER[PHP_SELF]?page=".($page-1) ?>">上一页</a>  <?php for($i=1;$i<=$total_page;$i++){ if($i==$page){//当前页为显示页时加背景颜色 echo "<a style='padding: 5px 5px;background: #000;color: #FFF' href='$_SERVER[PHP_SELF]?page=$i'>$i</a>"; }else{ echo "<a style='padding: 5px 5px' href='$_SERVER[PHP_SELF]?page=$i'>$i</a>"; } } ?> <a href="<?php echo "$_SERVER[PHP_SELF]?page=".($page+1) ?>">下一页</a> <a href="<?php echo "$_SERVER[PHP_SELF]?page={$total_page}" ?>">末页</a> <span>共<?php echo $total?>条</span> </div> </div> <div id="right" > <h2>留言板</h2> <div > <a href="">首页</a> | <button>留言</button> <a href="" class="right">管理员登录</a> <form method="post" action="ressage_post.php" style="display:none;" onsubmit="return foo();" name="myform" "> <div class="form"> <p> 姓名：<input type="text" name="name"> </p> <p> 邮箱：<input type="email" name="email"> </p> <p> 留言内容：<br/> <textarea cols="30" rows="7" name="content"></textarea> </p> <p> 验证码：<input type="text" name="vcode"><img src="yanzhengma.php" onClick="this.src='yanzhengma.php?nocache='+Math.random()" style="cursor:hand"> </p> <p> <button class="button">提交留言</button> </p> </div> </form> </div> </body> </html>

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