PHP realizes the addition, deletion, checking and modification function of the database and the complete code php example

display("school/stu"); 
 } 
 public function getdata(){ 
  $Studata = M('stu'); 
  $data['id']=''; 
  $data['name']=I('get.name'); 
  $data['age']=I('get.age'); 
  $data['num']=I('get.num'); 
  $data['address']=I('get.add'); 
  $Studata->add($data); 
  $this->success("正在。。。",U('Stu/showdata')); 
 } 
 public function showdata() 
 { 
  $Studata = M('stu'); 
  $data=$Studata->select(); 
  $this->assign('info',$data); 
  $this->display('school/showdata'); 
 } 
 public function del(){ 
  $id = I('get.id'); 
  $Studata = M('stu'); 
  $bool = $Studata->where(['id'=>$id])->delete(); 
  if($bool){ 
   echo 1; 
  }else{ 
   echo 0; 
  } 
 } 
 public function updata() 
 { 
  $id = I('get.id'); 
  $Studata = M('stu'); 
  $data = $Studata->where(['id'=>$id])->find(); 
  $this->assign('data',$data); 
  $this->display("school/upshowdata"); 
 } 
 public function updatadeal() 
 { 
  $Studata = M('stu'); 
  $id = I('get.id'); 
  $data['name']=I('get.name'); 
  $data['age']=I('get.age'); 
  $data['num']=I('get.num'); 
  $data['address']=I('get.add'); 
  $bool = $Studata->where(['id'=>$id])->save($data); 
  if($bool){ 
   $this->showdata(); 
  }else{ 
   echo 0; 
  } 
 } 
}

 
 
 
  
  

 
 
 
 
学生信息展示
 
 
 
 
 
编号
 
 
姓名
 
 
年龄
 
 
学号
 
 
籍贯
 
 
操作
 
 
操作
 
 
  
{$vo['id']}
 
  
{$vo['name']}
 
  
{$vo['age']}
 
  
{$vo['num']}
 
  
{$vo['address']}
 
  
删除
 
   
修改
 
 
 
 
 
 
 
 
 

 
 
 
  
  
  
  

 
 
 
 
 
 名字:  
 
 
 年龄:  
 
 
 学号: 
 
 
 籍贯: 
 
 
  
 
 
 
 

 
 
 
  
  
  
  

 
 
 
  
 
 
 名字:  
 
 
 年龄:  
 
 
 学号: 
 
 
 籍贯: