


CRUD (add, delete, modify, check) operations for php message board development_PHP tutorial
Project structure:
Add page: Explanation: Only pay attention to the operation here, and there is no time for the artist of the interface. I hope everyone understands ...
List page:
Modify page:
SQL required in the project:
use form;
CREATE TABLE `message` (
`id` tinyint(1) NOT NULL auto_increment,
`user` varchar(25) NOT NULL,
`title` varchar(50) NOT NULL,
`content` tinytext NOT NULL,
`lastdate` date NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET= gbk AUTO_INCREMENT=1;
conn.php
mysql_select_db("form", $conn);
mysql_query("set names 'gbk'");
?>
if($_POST['submit']){
$sql="INSERT INTO message(id,user,title,content,lastdate) VALUES (NULL, '$_POST[user]', '$_POST[title]', '$_POST[content]', now())";
mysql_query ($sql);
//Page jump, implemented by javascript
$url = "list.php";
echo "";
}
?>
< ;script type="text/javascript">
function checkPost(){
if(addForm.user.value==""){
alert("Please enter username") ;
addForm.user.focus();
return false;
}
if(addForm.title.value.length<5){
alert("The title cannot be less than 5 characters");
addForm.title.focus();
return false;
}
}
include 'conn.php';
?>
echo "";
?>
标题:=$row[title]?> 用户:=$row[user] ?> |
内容:=$row[content]?> |
发表日期:=$row[lastdate]?> |
delete.php
include 'conn.php';
$id = $_GET['id'];
$query="delete from message where id=".$id;
mysql_query($query);
?>
//页面跳转,实现方式为javascript
$url = "list.php";
echo "";
?>
preEdit.php
include 'conn.php';
$id=$_GET[id];
$query="SELECT * FROM message WHERE id =".$id;
$result=mysql_query($query);
while ($rs=mysql_fetch_array($result)){
?>
postEdit.php
include 'conn.php';
$query="update message set user='$_POST[user]',title='$_POST[title]',content='$_POST[content]' where id='$_POST[id]'";
mysql_query($query);
?>
//页面跳转,实现方式为javascript
$url = "list.php";
echo "";
?>

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