用PHP+MySQL制作的一个简单的留言板

 

CREATE DATABASE GBOOK;
CREATE TABLE `gbook` (
`id` INT( 255 ) UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY ,
`name` VARCHAR( 10 ) NOT NULL ,
`sex` TINYINT( 1 ) UNSIGNED NOT NULL ,
`email` VARCHAR( 255 ) NOT NULL ,
`info` TEXT NOT NULL ,
`ip` VARCHAR( 15 ) NOT NULL ,
`time_at` DATETIME NOT NULL
)
主要页面有:
input.html为初始页
insert.php为把输入内容送入数据库
show.php显示留言板内容
change.php修改留言板内容的界面
del.php删除留言板内容
change_ok.php修改留言板内容并送入数据库
                                                       input.html

  

你的名字：

  

你的性别：男生     女生

  

你的E-mail:

  

你的留言内容:

  

  

                                                             insert.php
  
  $mysql_server_name = "localhost";
  $mysql_username    = "root";
  $mysql_password    = "123456";
  $mysql_database    = "gbook";
  
  $ip = getenv('REMOTE_ADDR');
  
  $conn = mysql_connect("localhost","root","123456");
  mysql_select_db("gbook");
  $sql = "INSERT INTO `gbook` ( `id` , `name` , `sex` , `email` , `info` , `ip` , `time_at` )
VALUES (NULL , '$name', '$sex', '$email', '$info', '$ip', NOW( ))";
  $result = mysql_query($sql,$conn);
  $id = mysql_insert_id();
  mysql_close($conn);
  
?>

留言成功

去留言页

                                                                   show.php
  
  $mysql_server_name = "localhost";
  $mysql_username    = "root";
  $mysql_password    = "123456";
  $mysql_database    = "gbook";
  
  $sql = "SELECT * FROM gbook ORDER BY 'id' DESC"; //排序 后留言的在前面显示
  $conn = mysql_connect($mysql_server_name,$mysql_username,$mysql_password);
  mysql_select_db($mysql_database,$conn);
  $result = mysql_query($sql);
  while($row = mysql_fetch_row($result))
  {  // ----if语句判断男女------
          if($row[2]==1)
     {   $gender = '男';}
       else
     {   $gender = '女'; }
?>

  
    
  
  
    
  

()

[修改] [删除]

---

  }
  mysql_free_result($result);
  
?>
                                                                           change.php
  $mysql_server_name = "localhost";
  $mysql_username    = "root";
  $mysql_password    = "123456";
  $mysql_database    = "gbook";
  
  $sql = "SELECT name, sex, email, info FROM gbook WHERE id = '$id' ";
  $conn = mysql_connect($mysql_server_name,$mysql_username,$mysql_password);
  mysql_select_db($mysql_database,$conn);
  $result = mysql_query($sql);
  $row = mysql_fetch_row($result);
  
?>

  

你的名字：

// -----if语句判断男女 1为男 0为女-------
      if($row[1]==1)
     echo '

你的性别：男     女

';
   else
     echo '

你的性别：男     女

';

?>  

  

你的E-mail:

  

你的留言内容:

  

<?=$row[3]?>

  

                                                                                                 del.php
  $mysql_server_name = "localhost";
  $mysql_username    = "root";
  $mysql_password    = "123456";
  $mysql_database    = "gbook";
  
  $sql = "DELETE FROM gbook WHERE id = '$id' ";
  $conn = mysql_connect($mysql_server_name,$mysql_username,$mysql_password);
  mysql_select_db($mysql_database,$conn);
  $result = mysql_query($sql);
  mysql_close($conn);
?>

[返回]

                                                                                     change_ok.php
  $mysql_server_name = "localhost";
  $mysql_username    = "root";
  $mysql_password    = "123456";
  $mysql_database    = "gbook";
  
  $sql = "UPDATE `gbook` SET `name` = '$name',`sex` = '$sex',`email` = '$email',`info` = '$info' WHERE `id` ='$id' ";
  $conn = mysql_connect($mysql_server_name,$mysql_username,$mysql_password);
  mysql_select_db($mysql_database,$conn);
  $result = mysql_query($sql);
  mysql_close($conn);
?>

[返回]