ThinkPHP基本的增删查改操作实例教程

<form action="__URL__/add" method="post">
 用户名:<input type="text" name="username" /><br />
 密码<input type="password" name="password" /><br />
 重复密码<input type="repassword" name="repassword" /><br />
 <input type="submit" value="注册" />
</form>

<volist name="alist" id="vo">
 <li><span>ID</span>{$vo['id']}<span>用户名</span>{$vo['username']}<span>注册ip</span>{$vo['createip']}<a href="__URL__/del/id/{$vo['id']}">删除</a>&nbsp;&nbsp;<a href="__URL__/edit/id/{$vo['id']}">编辑</a></li>
</volist>

<form action="__URL__/update" method="post">
 用户名:<input type="text" name="username" value="{$data['username']}" /><br />
 密码<input type="password" name="password" value="{$data['password']}" /><br />
 IP<input type="text" name="createip" value="{$data['createip']}" /><br />
 时间<input type="text" name="createtime" value="{$data['createtime']}" /><br />
 <input type="hidden" value="{$data['id']}" name="id" />
 <input type="submit" value="更新" />
</form>

class UserAction extends Action {
   function index(){
     $user=M('user');
     $list=$user->field(array('id','username','createip'))->select();
     $this->assign('title','thinkphp视频演示');
     $this->assign('alist',$list);
     $this->display();     
   }
   //删除
   function del(){
     $user=D('user');
     if($user->delete($_GET['id'])){
       $this->suess('删除成功');   
     }else{
       $this->error('删除失败');
     }
   }
   //增加
   function add(){
     Load('extend');
     if($_POST['password']!=$_POST['repassword']){
       $this->error('两次密码不一致');   
     }
     $user=D('user');
     if($vo=$user->create()){
       $user->password=md5($user->password);
       $user->createtime=time();
       //$user->createip=$_SERVER[];
       $user->createip=get_client_ip();
       if($user->add()){
         $this->suess('用户注册成功，返回上级页面');   
       }else{
         $this->error('用户注册失败，返回上级页面');
       }
     }else{
       $this->error($user->getError());   
     }
   }
   //显示用户的修改项
   function edit(){
     $user=M('user');
     $id=(int)$_GET['id'];
     $list=$user->where("id=$id")->find();
     $this->assign('data',$list);
     $this->assign('title','显示用户编辑信息'); 
     $this->display();
   }
   //将更新数据写入数据库
   function update(){
     $user=M('user');
     $user->password=md5($user->password);
     if($user->create()){
       if($insertid=$user->save()){
         $this->suess('更新成功,受影响的行数为'.$insertid);
       }else{
         $this->error('更新失败');   
       }
     }
   }
}
?>