13-1 上課範例：index.php

<?php
//引入共同檔
require_once "header.php";

//變數初始化
$op=isset($_REQUEST['op'])?$_REQUEST['op']:"";
//$class_sn= isset($_REQUEST['class_sn'])? intval($_REQUEST['class_sn']) : "";

//流程控制
switch($op){

  case "insert":
  insert_article();
  header("location:{$_SERVER['PHP_SELF']}");
  break;
  
  case "edit":
  $main=article_form();
  break;

  default:
  $main=list_article();
  break;
}


//套用樣板
theme("theme.html");

/*************** 功能函數區 **************/

function list_article(){
  $now_seme=get_seme();
  
  //設定SQL語法
  $sql="select a.* , b.class_name
  from `tncomu_article` as a left join `tncomu_class` as b on a.class_sn=b.class_sn
  where a.enable='1' and b.seme='$now_seme'
  order by a.post_time desc";

  //執行SQL語法
  $result = mysql_query($sql) or die("無法執行：".mysql_error());

  $main="
  <script>
  function delete_func(sn){
   var sure = window.confirm('確定要刪除此資料？');
   if (!sure)	return;
   location.href='{$_SERVER['PHP_SELF']}?op=delete&sn=' + sn;
  }
  </script>

  <table border=1>";

  while($data=mysql_fetch_assoc($result)){
  
    //$sql="select class_name from `tncomu_class` where class_sn='{$data['class_sn']}'";
    //$result2 = mysql_query($sql) or die("無法執行：".mysql_error());
    //list($class_name)=mysql_fetch_row($result2);
  
    $main.="
    <tr>
    <td>{$data['class_name']}</td>
    <td>{$data['stud_name']}</td>
    <td>{$data['post_time']}</td>
    <td>{$data['counter']}</td>
    <td><a href='javascript:delete_func({$data['sn']})'>刪除</a> | <a href='{$_SERVER['PHP_SELF']}?class_sn={$data['sn']}&op=edit'>編輯</a></td>
    </tr>";
  }

  $main.="</table>";

  return $main;
}

//輸入學習收藏的表單
function article_form(){
  $now_seme=get_seme();

  $sql="select class_sn,class_name from tncomu_class where access='1' and seme='{$now_seme}' ";
  $result=mysql_query($sql) or die($sql);
  $opt="";
  while(list($class_sn , $class_name) = mysql_fetch_row($result)){
    $opt.="<option value='$class_sn'>$class_name</option>";
  }


  $main="<h3 style='color:#0066CC'>輸入學習收藏</h3>
  <form action='{$_SERVER['PHP_SELF']}' method='post'>
    <table>
      <tr>
        <th>您的姓名：</th>
        <td><input type='text' name='stud_name' size='10'></td>
        <th>{$now_seme}班級：</th>
        <td>
          <select name='class_sn'>
            <option value=''>請選擇{$now_seme}班級</option>
            $opt
          </select>
        </td>
      </tr>
      <tr>
        <th>學習收藏內容</th>
        <td colspan=3><textarea name='content' cols=50 rows=8></textarea></td>
      </tr>
      <tr>
        <th>設定密碼：</th>
        <td><input type='text' name='text_passwd' size='10'></td>
        <th>是否發布？</th>
        <td>
          <input type='radio' name='enable' value='1' id='enable'><label for='enable'>發布</label>
          <input type='radio' name='enable' value='0' id='unable'><label for='unable'>暫不發布</label>
          <input type='hidden' name='op' value='insert'>
          <input type='submit' value='儲存'>
        </td>
      </tr>
    </table>
  </form>
  ";
  return $main;
}


//執行儲存動作
function insert_article(){

  $stud_name=trim($_POST['stud_name']);
  $stud_name = (! get_magic_quotes_gpc()) ? addslashes($stud_name) : $stud_name;
  $_POST['content'] = (! get_magic_quotes_gpc()) ? addslashes($_POST['content']) : $_POST['content'];
  $_POST['text_passwd'] = (! get_magic_quotes_gpc()) ? addslashes($_POST['text_passwd']) : $_POST['text_passwd'];
  
  $class_sn=intval($_POST['class_sn']);

  $sql="INSERT INTO `tncomu_article`(`stud_name`, `content`, `post_time`, `enable`, `class_sn`, `mode`, `text_passwd`) VALUES ('{$stud_name}' , '{$_POST['content']}' , now(), '{$_POST['enable']}', '{$class_sn}', '文字', '{$_POST['text_passwd']}')";
  mysql_query($sql) or die(mysql_error().$sql);
  return "儲存完畢";
}


?>