时间:2021-07-01 10:21:17 帮助过:56人阅读
本文实例为大家分享了PHP留言本功能的具体代码,供大家参考,具体内容如下
index.php
- <?php
- error_reporting(0); //关闭NOTICE提示
- require_once "conn.php";
- $pagesize=5; //每页显示5条数据
- $sql="select count(*) from guestlist "; //选择数据库,计算符合条件的行数并返回行数
- $result= mysql_query($sql); //执行,如果成功则返回结果集(从数据库中找到所有的数据,返回条数)
- $row = mysql_fetch_row($result); //获得数组 Array[0]="数据库里的总条数"
- $infoCount =$row[0]; //获得总条数:取得数组中的值$row[0]="数据库里的总条数"
- $pageCount = ceil($infoCount/$pagesize); //获取总页数(总个数/每页的个数5)
- $currpage=empty ($_GET["page"])?1:$_GET["page"]; //如果当前页为空 则定义page=1即$currpage=1反之亦然
- if($currpage>$pageCount) //如果输入的页数超过总页数则默认跳转到最后一页
- {
- $currpage=$pageCount;
- }
- ?>
- <!DOCTYPE html>
- <html>
- <head>
- <meta charset="utf-8" />
- <title></title>
- <!--此处添加了bootstrip样式-->
- <link href="../dist/css/bootstrap.min.css" rel="external nofollow" type="text/css" rel="stylesheet" />
- <link href="css/index.css" rel="external nofollow" type="text/css" rel="stylesheet" />
- <script>
- function test(){
- var sum;
- if(document.frm.title.value==''){
- alert('请填写标题');
- return false;
- }else{
- sum =document.frm.title.value.length;
- if(sum<5 || sum>20){
- alert('标题长度 5-20个字符');
- return false;
- }
- }
- if(document.frm.username.value==''){
- alert('请填写用户网名');
- return false;
- }
- if(document.frm.content.value==''){
- alert("请填写内容");
- return false;
- }
- return true;
- }
- </script>
- </head>
- <body>
- <div class="content">
- <h5 style="color: red;"><?php echo $infoCount;?>条留言</h5><br/>
- <ul class="bt">
- <li>留言标题</li>
- <li>用户网名</li>
- <li>时间</li>
- </ul>
- <?php //从当前页开始 向下取出5个
- $re= mysql_query("select * from guestlist order by id desc limit ".($currpage-1)*$pagesize.",".$pagesize);
- while($row= mysql_fetch_assoc($re)) //得到一行数据的数组,再执行则得到再下一行,如果得到是最后一行,那么再执行则返回false
- {
- ?>
- <ul class="nr">
- <li><?php echo $row["title"];?></li>
- <li><?php echo $row["username"];?></li>
- <li><?php echo $row["addtime"];?></li>
- </ul>
- <div class="lynr">
- <p><strong>留言内容:</strong></p><span><?php echo $row["content"];?></span>
- </div>
- <?php
- }
- ?>
- <hr style="width:800px"/>
- <ul class="pagination">
- <!--上一页-->
- <?php
- for($i=1;$i<=$pageCount;$i++)
- {
- if($i==$currpage)
- {
- echo "<li><a href=?page=".($i-1).">«</a></li>";
- }
- }
- ?>
- <!--数字页-->
- <?php
- for($i=1;$i<=$pageCount;$i++)
- {
- if($i==$currpage)
- {
- echo "<li ><a style='background-color:#EEEEEE'>$i</a></li>";
- }else{
- echo "<li><a href='?page=$i'>$i</a></li>";}
- }
- ?>
- <!--下一页-->
- <?php
- for($i=1;$i<$pageCount;$i++)
- {
- if($i==$currpage)
- {
- echo "<li><a href=?page=".($i+1).">»</a></li>";
- }
- }
- ?>
- </ul>
- <br/>
- <ul>
- </ul>
- <hr/>
- <strong style="color:red">发表留言</strong>
- <form action="result.php" method="post" name="frm" onsubmit="return test()">
- <table cellpadding="0" cellspacing="0" >
- <tr>
- <td >留言标题:</td>
- <td><input type="text" name="title" autocomplete="off"/></td>
- </tr>
- <tr>
- <td>网名:</td>
- <td><input type="text" name="username" autocomplete="off"/></td>
- </tr>
- <tr>
- <td>留言内容:</td>
- <td><textarea name="content" cols="42" rows="5" autocomplete="off"/></textarea></td>
- </tr>
- <tr>
- <td></td>
- <td><input class="btn" type="submit" name="submit" value="提交"/></td>
- </tr>
- </table>
- </form>
- </div>
- </body>
- </html>
conn.php
- <?php
- $link = mysql_connect("localhost","root"," ");
- mysql_select_db("guestbook");
- mysql_query("set names utf-8");
- if(!$link){
- die("Connection failed: " . mysqli_connect_error());
- }
- //echo "链接成功";
- ?>
result.php
- <?php
- error_reporting(0); //关闭NOTICE提示
- require_once "conn.php";
- $title = $_REQUEST['title'];
- $username = $_REQUEST['username'];
- $content = $_REQUEST['content'];
- $content = str_replace("\n","<br>",str_replace(" "," ",$content)); //显示'空格'和'回车'
- $week = '星期'.mb_substr( "日一二三四五六",date("w"),1,"utf-8" );
- $isok =mysql_query("insert into guestlist(title,username,content,addtime)values('$title','$username','$content','".date("Y-m-d H:i:s")." $week ')");
- if($isok)
- {
- echo "<script>
- alert('提交成功');
- location.href='index.php';
- </script>";
- }else {
- echo "<script>
- alert('提交失败');
- location.href='index.php';
- </script>";
- }
- ?>
css/index.css
- body{margin:0;padding:0;}
- ul,li{list-style: none;margin:0;padding:0;}
- a{text-decoration: none;}
- .content{
- width:800px;
- margin:0 auto;
- }
- .bt{
- width:799px;
- height:20px;
- text-align: center;
- background:#EB9316;
- margin:0 0 5px 0;
- }
- .bt>li{
- float:left;
- width:265px;
- height:20px;
- text-align: center;
- line-height: 20px;
- font-size:13px;
- }
- .nr{
- float:left; /*如果不浮动 后面的lynr会受影响*/
- width:799px;
- height:20px;
- text-align: center;
- background:#B9DEF0;
- }
- .nr>li{
- float:left;
- width:265px;
- height:20px;
- text-align: center;
- line-height: 20px;
- font-size:13px;
- }
- .lynr{
- float:left; /*如果不浮动会 布局会乱*/
- width:800px;
- margin:1px 0 1px 0;
- }
- .content p{
- width:70px;
- height:50px;
- float:left;
- }
- .content span{
- display: block;
- width:710px;
- float:left;
- }
- td{
- width:80px;
- padding:5px 0;
- /*border: 1px solid #79ABFE;*/
- }
- td input,textarea{
- border: 1px solid #79ABFE;
- }
- /*tr{
- display:block; /*将tr设置为块体元素 显示块状后 就将其包围住了 不是一个矩形了
- }*/
dist/css/bootstrap.min.css(自己下载)
效果图:
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持脚本之家。