:::

7-1 post.php

<?php
  // 啟用 session
  session_start();

  /*----引入檔案----*/
  require_once "config.php";
  require_once "function.php";

  /*----整理傳進來的變數或變數初始值----*/
  $op=isset($_REQUEST['op'])?$_REQUEST['op']:"";
  $sn=isset($_REQUEST['sn'])?intval($_REQUEST['sn']):"";
  $error_msg=$main="";

  /*----流程控制----*/

  switch ($op) {
    case 'clear':
      session_destroy();
      header("location:post.php");
      break;

    case 'passwd_error':
      $main=news_form($sn);
      $error_msg=error_msg("密碼錯誤!!請檢查密碼是否正確!");
      break;

    case 'db_error':
      $error_msg=error_msg("資料庫連線錯誤!!請檢查資料庫帳號、密碼是否正確!");
      break;

    case 'save':
      save_news();
      header("location:index.php");
      exit;
      break;

    case 'update':
      save_news($sn);
      header("location:index.php?op=view&sn={$sn}");
      exit;
      break;

     case 'modify':
      $main=news_form($sn);
      break;

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


  /*----輸出----*/
  show_page('post_tpl');



  /*----所有函數----*/

  //新聞編輯表單
  function news_form($sn=""){

    if($sn){
      link_db();
      //讀取eznews資料表所有欄位,並指定某一筆特定資料
      $sql="select * from eznews where sn='$sn'";

      //傳回值存到 $result 以供抓取資料用
      $result=mysql_query($sql) or die("{$sql}<br>".mysql_error());
      $news=mysql_fetch_assoc($result);
      // foreach ($news as $k => $v) {
      //   $$k=$v;
      // }

      $news_title=$news['news_title'];
      $news_content=$news['news_content'];
      $ip=$news['ip'];
      $author=$news['author'];
      $post_time=$news['post_time'];

      $next_op="update";
    }else{
      $news_title=isset($_SESSION['news_title'])?$_SESSION['news_title']:"";
      $news_content=isset($_SESSION['news_content'])?$_SESSION['news_content']:"";
      $ip=$_SERVER['REMOTE_ADDR'];
      $author=isset($_SESSION['author'])?$_SESSION['author']:"";
      $post_time=isset($_SESSION['post_time'])?$_SESSION['post_time']:date("Y-m-d H:i:s");

      $next_op="save";
    }

    $main=<<<form
    <form action="post.php" method="post" role="form">

      <div class="row">
        <div class="col-md-5">
          <div class="form-group">
            <input type="text" name="news_title" placeholder="請輸入新聞標題" class="form-control" value="$news_title">
          </div>
        </div>

        <div class="col-md-3">
          <div class="form-group">

            <label class="radio-inline">
              <input type="radio" name="status" value="">正常
            </label>

            <label class="radio-inline">
              <input type="radio" name="status" value="置頂">置頂
            </label>

            <label class="radio-inline">
              <input type="radio" name="status" value="高亮">高亮
            </label>

          </div>
        </div>

        <div class="col-md-2">
          <div class="form-group">
            <input type="text" name="post_time" id="datetimepicker" placeholder="請輸入發布日期" class="form-control" value="$post_time">
          </div>
        </div>


        <div class="col-md-2">
          <div class="form-group">
            <input type="text" name="author" placeholder="請輸入發布者" class="form-control" value="$author">
          </div>
        </div>
      </div>



      <div class="form-group">
        <textarea id="summernote" name="news_content" style="height:300px;" placeholder="請輸入新聞內容" class="form-control">$news_content</textarea>
      </div>

      <div class="row">
        <div class="col-md-3">
          <select name="cate_sn" class="form-control">
            <option value="">請選擇分類</option>
          </select>
        </div>
        <div class="col-md-3">
          <input type="text" name="cate_title" class="form-control" placeholder="請輸入新分類">
        </div>
        <div class="col-md-3">
          <div class="form-group">
            <input type="password" name="password" class="form-control" placeholder="請輸入密碼">
          </div>
        </div>
        <div class="col-md-3">

          <input type="hidden" name="ip" value="$ip">
          <input type="hidden" name="sn" value="$sn">
          <input type="hidden" name="op" value="$next_op">
          <a href="post.php?op=clear" class="btn btn-danger">清除</a>
          <input type="submit" value="儲存" class="btn btn-info">
        </div>
      </div>

    </form>
form;
    return $main;
  }


  //儲存新聞
  function save_news($sn=""){

    //過濾外面傳來的變數
    $op=isset($_POST['op'])?$_POST['op']:"";
    $password=isset($_POST['password'])?$_POST['password']:"";
    $news_title=isset($_POST['news_title'])?check_input($_POST['news_title']):"";
    $news_content=isset($_POST['news_content'])?check_input($_POST['news_content']):"";
    $author=isset($_POST['author'])?check_input($_POST['author']):"";
    $ip=isset($_POST['ip'])?check_input($_POST['ip']):"";
    $post_time=isset($_POST['post_time'])?check_input($_POST['post_time']):"";
    $status=isset($_POST['status'])?check_input($_POST['status']):"";
    $cate_title=isset($_POST['cate_title'])?check_input($_POST['cate_title']):"";
    $cate_sn=isset($_POST['cate_sn'])?intval($_POST['cate_sn']):"";

    //接收使用者輸入密碼,失敗轉回發布頁
    if(empty($password) or $password!=_POST_PASSWD){
      // 產生 cookie
      // setcookie('news_title',$news_title);
      // setcookie('news_content',$news_content);

      // 產生 session,以記住剛剛使用者輸入的資料,避免需要重打
      $_SESSION['news_title']=$news_title;
      $_SESSION['news_content']=$news_content;
      $_SESSION['author']=$author;
      $_SESSION['status']=$status;
      $_SESSION['cate_sn']=$cate_sn;

      //轉回編輯頁面,並用 get 方式,傳遞 $op 以便顯示密碼有誤的訊息
      header("location:{$_SERVER['PHP_SELF']}?op=passwd_error");
      exit;
    }else{
      // nl2br()將換行符號轉換為<br>標籤
      //$news_content=nl2br($news_content);
      // 發布正確,剛剛輸入的內容無需在記住,因此清空之。
      session_destroy();
    }

    link_db();

    //新增分類
    if(empty($cate_sn) and !empty($cate_title)){
      $sql="insert into eznews_cate (cate_title) values('$cate_title')";
      mysql_query($sql) or die($sql."<br>".mysql_error());
      $cate_sn=mysql_insert_id();
    }elseif(!empty($cate_sn) and !empty($cate_title)){
      //修改分類
      $sql="update eznews_cate cate_title='$cate_title' where cate_sn='$cate_sn'";
      mysql_query($sql) or die($sql."<br>".mysql_error());
    }

    //存到資料庫
    if($sn){
      $sql="update eznews set cate_sn='$cate_sn', news_title='$news_title', news_content='$news_content', ip='$ip', author='$author', post_time='$post_time', status='$status' where sn='$sn'";
    }else{
      $sql="insert into eznews (cate_sn,news_title, news_content, ip, author, post_time,status) values('$cate_sn','$news_title', '$news_content', '$ip', '$author', '$post_time', '$status')";
    }

    mysql_query($sql) or die($sql."<br>".mysql_error());
  }




  //替特殊符號加入反斜線
  function check_input($value){
    if (!get_magic_quotes_gpc()){
      $value = addslashes($value);
    }
    return $value;
  }


?>

 


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