[1002] PHP入門班
<?php
//引入共同檔
require_once "header.php";
//變數初始化
$op=isset($_REQUEST['op'])?$_REQUEST['op']:"";
$sn= isset($_REQUEST['sn'])? intval($_REQUEST['sn']) : "";
//流程控制
switch($op){
case "admin":
$main= ($_SESSION['isLeader']) ? list_article($_SESSION['isLeader']) : login_form();
break;
case "login":
leader_login($_POST['class_sn'], $_POST['pass']);
header("location:index.php?op=admin");
break;
case "logout":
$_SESSION['isLeader']=null;
header("location:index.php");
break;
case "insert":
insert_article();
header("location:{$_SERVER['PHP_SELF']}");
break;
case "edit":
$main=article_form($sn);
break;
case "update":
update_article($sn);
header("location:{$_SERVER['PHP_SELF']}");
break;
case "delete":
delete_article($sn);
header("location:{$_SERVER['PHP_SELF']}");
break;
default:
$main=empty($sn)?list_article():show_article($sn);
break;
}
//套用樣板
theme("theme.html");
/*************** 功能函數區 **************/
//登入表單
function login_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>";
}
$main="
<form action='{$_SERVER['PHP_SELF']}' method='post'>
<select name='class_sn'>
$opt
</select>
密碼：<input type='password' name='pass'>
<input type='hidden' name='op' value='login'>
<input type='submit' value='登入'>
</form>";
return $main;
}
//進行認證
function leader_login($class_sn='',$pass=''){
if(empty($class_sn) or empty($pass))return;
//設定SQL語法
$sql="select passwd from `tncomu_class` where class_sn='{$class_sn}'";
$result=mysql_query($sql) or die("無法執行：".mysql_error());
list($passwd)=mysql_fetch_row($result);
if($passwd==$pass){
$_SESSION['isLeader']=$class_sn;
}
}
//秀出某一篇文章
function show_article($sn=null){
$now_seme=get_seme();
$sql="update `tncomu_article` set `counter`=`counter`+1 where sn='$sn'";
mysql_query($sql) or die("無法執行：".mysql_error());
//設定SQL語法
$sql="select a.* , b.class_name
from `tncomu_article` as a left join `tncomu_class` as b on a.class_sn=b.class_sn
where a.enable='1' and a.sn='$sn'";
//執行SQL語法
$result = mysql_query($sql) or die("無法執行：".mysql_error());
$data=mysql_fetch_assoc($result);
$data['content']=nl2br($data['content']);
$main="
<h1>「{$data['stud_name']}」的學習收藏</h1>
<div style='text-align:right;margin:10px 0px;'>{$data['class_name']}</div>
<div>{$data['content']}</div>
<div style='text-align:right;margin:10px 0px;'>{$data['post_time']}</div>
";
return $main;
}
//列出所有文章
function list_article($class_sn=null){
require_once "pagebar.php";
$now_seme=get_seme();
$and_class_sn=empty($class_sn)?"":"and a.class_sn='$class_sn'";
//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' $and_class_sn
order by a.post_time desc";
//PageBar(資料數, 每頁顯示幾筆資料, 最多顯示幾個頁數選項);
mysql_query($sql);
$total=mysql_affected_rows();
$navbar = new PageBar($total, 5, 10);
$mybar = $navbar->makeBar();
$bar= "<p align='center'>{$mybar['left']}{$mybar['center']}{$mybar['right']}</p>";
$sql.=$mybar['sql'];
//執行SQL語法
$result = mysql_query($sql) or die("無法執行：".mysql_error());
$js="";
if($_SESSION['isLeader']){
$js="
<script>
function delete_func(sn){
var sure = window.confirm('確定要刪除此資料？');
if (!sure) return;
location.href='{$_SERVER['PHP_SELF']}?op=delete&sn=' + sn;
}
</script>";
}
$main="
$js
$bar
<table>
<tr>
<th>所屬班級</th>
<th>學員姓名</th>
<th>發布日期</th>
<th>人氣</th>
<th>相關功能</th>
</tr>";
$i=2;
while($data=mysql_fetch_assoc($result)){
$color=($i % 2)?"white":"#D0D0D0";
$i++;
$tool=($_SESSION['isLeader']==$data['class_sn'] and !empty($_SESSION['isLeader']))?"| <a href='javascript:delete_func({$data['sn']})'>刪除</a>":"";
$main.="
<tr style='background-color:$color;'>
<td>{$data['class_name']}</td>
<td><a href='{$_SERVER['PHP_SELF']}?sn={$data['sn']}'>{$data['stud_name']}</a></td>
<td>{$data['post_time']}</td>
<td>{$data['counter']}</td>
<td><a href = '{$_SERVER['PHP_SELF']}?sn={$data['sn']}&op=edit' >編輯</a>{$tool}</td>
</tr>";
}
$main.="</table>
$bar";
return $main;
}
//輸入學習收藏的表單
function article_form($sn=''){
$next_op="insert";
//初始值設定
$data['stud_name'] = $data['class_sn'] = $data['content'] = $data['enable'] = $radio1 = $radio0 = "";
if($sn){
//設定SQL語法
$sql="select * from `tncomu_article` where sn='{$sn}'";
//執行SQL語法
$result=mysql_query($sql) or die("無法執行：".mysql_error());
//擷取資料回來存到 $data
$data=mysql_fetch_assoc($result);
//還原下拉選單預設值
$radio1=($data['enable']=="1")?"checked":"";
$radio0=($data['enable']=="0")?"checked":"";
$next_op="update";
}
$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)){
$selected = ($class_sn == $data['class_sn'])?"selected":"";
$opt.="<option value='$class_sn' $selected>$class_name</option>";
}
$main="<h3 style='color:#0066CC'>輸入學習收藏</h3>
<script type='text/javascript' src='ckeditor/ckeditor.js'></script>
<form action='{$_SERVER['PHP_SELF']}' method='post'>
<table>
<tr>
<th>您的姓名：</th>
<td><input type='text' name='stud_name' size='10' value='{$data['stud_name']}'></td>
<th>{$now_seme}班級：</th>
<td>
<select name='class_sn'>
<option value=''>請選擇{$now_seme}班級</option>
$opt
</select>
</td>
</tr>
<tr>
<td colspan=4><textarea name='content' class='ckeditor' cols=50 rows=8>{$data['content']}</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' $radio1><label for='enable'>發布</label>
<input type='radio' name='enable' value='0' id='unable' $radio0><label for='unable'>暫不發布</label>
<input type='hidden' name='sn' value='$sn'>
<input type='hidden' name='op' value='$next_op'>
<input type='submit' value='儲存'>
</td>
</tr>
</table>
</form>
";
return $main;
}
//執行儲存動作
function insert_article(){
//過濾姓名
$stud_name=trim($_POST['stud_name']);
$stud_name=strip_tags($stud_name);
$stud_name = (! get_magic_quotes_gpc()) ? addslashes($stud_name) : $stud_name;
$stud_name=htmlspecialchars($stud_name);
//過濾內容
$_POST['content'] = (! get_magic_quotes_gpc()) ? addslashes($_POST['content']) : $_POST['content'];
$_POST['content']=htmlspecialchars($_POST['content']);
//過濾密碼
$_POST['text_passwd'] = (! get_magic_quotes_gpc()) ? addslashes($_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";
}
//執行更新動作
function update_article($sn=''){
if($sn){
//設定SQL語法
$sql="select text_passwd from `tncomu_article` where sn='{$sn}'";
//執行SQL語法
$result=mysql_query($sql) or die("無法執行：".mysql_error());
//擷取資料回來存到 $data
list($text_passwd)=mysql_fetch_row($result);
if($text_passwd!=$_POST['text_passwd'] or empty($_POST['text_passwd'])){
return;
}
}
//過濾姓名
$stud_name=trim($_POST['stud_name']);
$stud_name=strip_tags($stud_name);
$stud_name = (! get_magic_quotes_gpc()) ? addslashes($stud_name) : $stud_name;
$stud_name=htmlspecialchars($stud_name);
//過濾內容
$_POST['content'] = (! get_magic_quotes_gpc()) ? addslashes($_POST['content']) : $_POST['content'];
$_POST['content']=htmlspecialchars($_POST['content']);
//過濾密碼
$_POST['text_passwd'] = (! get_magic_quotes_gpc()) ? addslashes($_POST['text_passwd']) : $_POST['text_passwd'];
$class_sn=intval($_POST['class_sn']);
$sql="update `tncomu_article` set `stud_name`='{$stud_name}', `content`='{$_POST['content']}', `post_time`=now(), `enable`='{$_POST['enable']}', `class_sn`='{$_POST['class_sn']}' where `sn`='{$sn}'";
mysql_query($sql) or die(mysql_error().$sql);
return "儲存完畢";
}
//刪除文章資料
function delete_article($sn=null){
//設定SQL語法
$sql="delete from `tncomu_article` where sn='{$sn}'";
//執行SQL語法
mysql_query($sql) or die("無法執行：".mysql_error());
//執行完轉向
header("location: {$_SERVER['PHP_SELF']}");
}
?>