php开发_留言板的CRUD(增,删,改,查)操作 - jerrylsxu
项目结构:
添加页面: 说明:这里只注重操作,对界面的美工没有下工夫,希望大家理解......
列表页面:
修改页面:
项目中所需的sql:
1 create database form; 2 3 use form; 4 5 CREATE TABLE `message` ( 6 `id` tinyint(1) NOT NULL auto_increment, 7 `user` varchar(25) NOT NULL, 8 `title` varchar(50) NOT NULL, 9 `content` tinytext NOT NULL, 10 `lastdate` date NOT NULL, 11 PRIMARY KEY (`id`) 12 ) ENGINE=InnoDB DEFAULT CHARSET=gbk AUTO_INCREMENT=1 ;
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conn.php
1 <?php 2 $conn = @ mysql_connect("localhost", "root", "") or die("数据库链接错误"); 3 mysql_select_db("form", $conn); 4 mysql_query("set names 'gbk'"); 5 ?>
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add.php
1 <?php 2 include 'conn.php'; 3 if($_POST['submit']){ 4 $sql="INSERT INTO message(id,user,title,content,lastdate) VALUES (NULL, '$_POST[user]', '$_POST[title]', '$_POST[content]', now())"; 5 mysql_query($sql); 6 7 //页面跳转,实现方式为javascript 8 $url = "list.php"; 9 echo "<script language='javascript' type='text/javascript'>"; 10 echo "window.location.href='$url'"; 11 echo ""; 12 } 13 ?> 14 <script type="text/javascript"> 15 function checkPost(){ 16 17 if(addForm.user.value==""){ 18 alert("请输入用户名"); 19 addForm.user.focus(); 20 return false; 21 } 22 if(addForm.title.value.length<5){ 23 alert("标题不能少于5个字符"); 24 addForm.title.focus(); 25 return false; 26 } 27 } 28 </script> 29
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list.php
1 <?php 2 include 'conn.php'; 3 ?> 4 <?php 5 echo "<div align='center'><a href="add.php">继续添加</a>
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标题:=$row[title]?> 用户:=$row[user] ?> | 16
内容:=$row[content]?> | 19
发表日期:=$row[lastdate]?> |
22
delete.php
1 <?php 2 include 'conn.php'; 3 $id = $_GET['id']; 4 $query="delete from message where id=".$id; 5 mysql_query($query); 6 ?> 7 <?php 8 //页面跳转,实现方式为javascript 9 $url = "list.php"; 10 echo "<script language='javascript' type='text/javascript'>"; 11 echo "window.location.href='$url'"; 12 echo ""; 13 ?>
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preEdit.php
1 <?php 2 include 'conn.php'; 3 $id=$_GET[id]; 4 $query="SELECT * FROM message WHERE id =".$id; 5 $result=mysql_query($query); 6 while ($rs=mysql_fetch_array($result)){ 7 ?> 8
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postEdit.php
1 <?php 2 include 'conn.php'; 3 $query="update message set user='$_POST[user]',title='$_POST[title]',content='$_POST[content]' where id='$_POST[id]'"; 4 mysql_query($query); 5 ?> 6 <?php 7 //页面跳转,实现方式为javascript 8 $url = "list.php"; 9 echo "<script language='javascript' type='text/javascript'>"; 10 echo "window.location.href='$url'"; 11 echo ""; 12 ?>
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