smarty的switch实用

session_start();
   include("./conn.php");
   include("./init.inc.php");
   include("page_class.php");
   include("./FCKeditor/fckeditor.php");

通过html或tpl文件传来的$action通过switch判断：

  $action=$_REQUEST['action'];

     

switch ($action){

//增加新闻：
 case "addnewsview":
  
  $tpl->assign("type",$type);
  
    $tpl->assign("content_title","添加新闻管理");
  $tpl->assign("page_title","添加新闻");
  editor("content","");
  $tpl->assign("actionvalue","addnews");
  
  
  
  $tpl->display("addnews.html");
  break;
  
  
  case "addnews":
   $title=$_REQUEST['title'];
   $content=$_REQUEST['content'];
   $button=$_REQUEST['Submit'];
   
      if(empty($title) || empty($content)){
   echo "请填写完成！";
 }else{
  $sql="insert into news(author,title,content,date) values('admin','$title','$content',NOW())";
  //echo $sql;
  $mysqli->query($sql);
  //echo $sql;
  
 echo "操作成功！";
 }

  
  
  break;
  
  
  //修改新闻：

   case "editnewsview":
    
  $id=$_REQUEST['id'];
  $tpl->assign("type",$type);
  
    $tpl->assign("content_title","添加新闻管理");
  $tpl->assign("page_title","添加新闻");
  //editor("content","");
  $tpl->assign("actionvalue","editnews");
  
  $sql="select * from news where id='{$id}'";
  $result=$mysqli->query($sql);
  $row=$result->fetch_assoc();
  
  editor("content",$row['content']);
  
  $tpl->assign("title",$row['title']);
  
  
  
  $tpl->display("addnews.html");
  break;
  
  
  case "editnews":
   $title=$_REQUEST['title'];
   $content=$_REQUEST['content'];
   $id=$_REQUEST['id'];
   $button=$_REQUEST['submit'];
   
    if ($button=='提交'){
  $sql="update news set title='$title',content='$content',date=NOW() where id=$id";
  //echo $sql;
  $mysqli->query($sql);
 echo "操作成功！";
 }

  
  
  break;
  
  
   //删除新闻：

 case delete:
  //echo "aaaa";
 
  
     if ($checkbox!="" or count($checkbox)!=0) {
  for ($i=0;$i       
   $result=$mysqli->query("delete from news where id='$checkbox[$i]'");
   
  }
  echo "删除成功！";
 }
 
    //header("location:./index.php?type={$type}");
  break;
   
 
 default: 
  
//为删除传action值
 //  $tpl->assign("actionvalue","delete");

//从PHP文件分配标量模板变量:
   $page_title="新闻管理系统";
   $tpl->assign("page_title",$page_title);

////新闻分页:
      $current_page=isset($_GET['page'])?intval($_GET['page']):1;

      echo $pageInfo["row_offset"];
 
 class MyDB{
 
  public function getRowTotal(){   
   global $mysqli;     
   $result=$mysqli->query("select * from news"); 
   return $result->num_rows;                        
  }
  
  
  public function getPageRows($offset, $num){ 
   global $mysqli; 
   
   $query="SELECT * FROM news ORDER BY id LIMIT $offset, $num";
   //echo $query;
   if($result=$mysqli->query($query)){    
    while($row=$result->fetch_assoc())
           
     $allProduct[]=$row;
                
    $result->close();                     
    return $allProduct;   
   }else{                                   
    return FALSE;                       
   }
  }
 }
 
 

  if(!$tpl->is_cached("index.html", $current_page)) {
  $mydb=new MyDB();                       
  $total=$mydb->getRowTotal();
  
               
  $fpage=new Page($total,$current_page, 4);  
  $pageInfo=$fpage->getPageInfo(); 
          
  $products=$mydb->getPageRows($pageInfo["row_offset"], $pageInfo["row_num"]);
  
  if($products) {                      
   $tpl->assign("tableName", "商品列表");
   $tpl->assign("url", "index.php");
   
       
   $tpl->assign("products", $products);   
   $tpl->assign("pageInfo", $pageInfo);
     
  }else {                                  
   echo "数据读取失败!";                
   exit;                               
  }
 }

   $tpl->display("index.html",$current_page);

}