PHP开发之留言板展示完整代码登陆

PHP开发之留言板展示完整代码

我们前面把HTML页面,分页,展示代码已经写出来了,现在要把他们都融合在一个页面,这样才符合我们的初衷,完整代码如下

完整代码

<?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>
            &nbsp;&nbsp;<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>";
                }
            }
 ?>
 &nbsp;&nbsp;<a href="<?php
            echo "$_SERVER[PHP_SELF]?page=".($page+1)
 ?>">下一页</a>
            &nbsp;&nbsp;<a href="<?php
            echo "$_SERVER[PHP_SELF]?page={$total_page}"
 ?>">末页</a>
            &nbsp;&nbsp;<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>

上面的代码你只要在html页面发布留言,留言就会在同一页面展示出来,当内容充满页面是,会实现分页的效果

我们看右边的页面展示,每条留言的后面还有一个删除链接哦,下一章节我们就把删除的功能做出来


下一节
<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> </p>    <table cellspacing="0" border="1"> <tbody><tr> <td>姓名:小龙</td><td style="text-align: center">留言时间:2016-11-02</td> <td><a href="ressage_delete.php?id=14">删除</a> </td> </tr> <tr> <td colspan="3">你的留言:小龙的身体特别棒</td> </tr> </tbody></table>    <table cellspacing="0" border="1"> <tbody><tr> <td>姓名:小明</td><td style="text-align: center">留言时间:2016-11-02</td> <td><a href="ressage_delete.php?id=13">删除</a> </td> </tr> <tr> <td colspan="3">你的留言:小明的学习怎么样?</td> </tr> </tbody></table>    <table cellspacing="0" border="1"> <tbody><tr> <td>姓名:刘奇</td><td style="text-align: center">留言时间:2016-11-02</td> <td><a href="ressage_delete.php?id=12">删除</a> </td> </tr> <tr> <td colspan="3">你的留言:今天你那里天气怎么样</td> </tr> </tbody></table> <div id="baner" style="margin-top: 20px"> <a href="/ressage.php?page=1">首页</a>   <a href="/ressage.php?page=0">上一页</a> <!-- 显示123456等页码按钮--> <a style="padding: 5px 5px;background: #000;color: #FFF" href="/ressage.php?page=1">1</a>   <a href="/ressage.php?page=2">下一页</a>   <a href="/ressage.php?page=1">末页</a>   <span>共3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 name="name" type="text"> </p> <p> 邮箱:<input name="email" type="email"> </p> <p> 留言内容:<br> <textarea cols="30" rows="7" name="content"></textarea> </p> <p> 验证码:<input name="vcode" type="text"><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> </div></body>
提交重置代码
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