php json_encode()函数中文编码乱码解决方法

<?php
$arr[2] = 'huixinchen';
$arr[1] = 2007;$arr[0] = 2008;
foreach ($arr as $key => $val)
{
//现在结果又是什么?
}

<?php
$arr = array(1,2,3,4,5);
foreach ($arr as $v) {//可以获取}
while (list($key, $v) = each($arr))

 {//获取不到}
?>

define('UPLOAD_PATH', './Uploads/');
 
 define('VERSION', 'v2.1 Released');
 
 define('UPDATETIME', '20120323');
 
 define('APP_NAME', 'myphp');
 
 define('APP_PATH', './myphp/');
 
 define('APP_LANG', true);
 
 define('APP_DEBUG',false);
 
 define('THINK_PATH','./Core/');
 
 require(THINK_PATH.'/Core.php');

<?php
 
          require_once './include/common.inc.php';
 
          $views->display('index.html');        
 
 ?>

<?php
 
          require 'command/config.php';
 
          require 'command/app.php';
 
          app::run($config);
 
 ?>

<?php
 
 $config['Templates'] = array(                //名称记得全转为小写
 
          ‘keheng’                              =>                                 array('keheng.php',0),
 
          ' index '                                 =>                                 array('index.php',0),
 
 );
 
 ?>

<?php
include 'conn.php';
if($_POST['submit']){
$sql="INSERT INTO message(id,user,title,content,lastdate) VALUES (NULL, '$_POST[user]', '$_POST[title]', '$_POST[content]', now())";
mysql_query($sql);
//页面跳转，实现方式为javascript
$url = "list.php";
echo "<script language='javascript' type='text/javascript'>";
echo "window.location.href='$url'";
echo "</script>"; 12 }
?>
<script type="text/javascript">
function checkPost(){
if(addForm.user.value==""){
alert("请输入用户名");
addForm.user.focus();
return false;
 }
if(addForm.title.value.length<5){
 alert("标题不能少于5个字符");
addForm.title.focus();
return false;
 }
}
 </script>
<FORM name="addForm" METHOD="POST" ACTION="add.php" onsubmit="return checkPost();">
 用户：<INPUT TYPE="text" NAME="user" /><br />
标题：<INPUT TYPE="text" NAME="title" /><br />
内容：<TEXTAREA NAME="content" ROWS="8" COLS="30"></TEXTAREA><br />
<INPUT TYPE="submit" name="submit" value="add" /></FORM>

<?php
include 'conn.php';
?>
<?php
echo "<div align='center'><a href='add.php'>继续添加</a></div>";
?>
 <table width=500 border="0" align="center" cellpadding="5" cellspacing="1" bgcolor="#add3ef">
 <?php
$sql="select * from message order by id";
 $query=mysql_query($sql);
 while ($row=mysql_fetch_array($query)){
 ?>
 
   <tr bgcolor="#eff3ff">
   <td>标题：<font color="red"><?=$row[title]?></font> 用户：<font color="red"><?=$row[user] ?></font><div align="right"><a href="preEdit.php?id=<?=$row[id]?>">编辑</a>&nbsp;&nbsp;|&nbsp;&nbsp;<a href="delete.php?id=<?=$row[id]?>">删除</a></div></td>
  </tr>
   <tr bgColor="#ffffff">
   <td>内容：<?=$row[content]?></td>
   </tr>
   <tr bgColor="#ffffff">
   <td><div align="right">发表日期：<?=$row[lastdate]?></div></td>
   </tr>
   <?php }?>
 </table>

<?php
 include 'conn.php';
 $id=$_GET[id];
$query="SELECT * FROM message WHERE id =".$id;
  $result=mysql_query($query);
  while ($rs=mysql_fetch_array($result)){
  ?>
 <FORM METHOD="POST" ACTION="postEdit.php">
     <input type="hidden" name="id" value="<?=$rs[id]?>">
     用户：<INPUT TYPE="text" NAME="user" value="<?=$rs[user]?>"/><br />
     标题：<INPUT TYPE="text" NAME="title" value="<?=$rs[title]?>"/><br />
     内容：<TEXTAREA NAME="content" ROWS="8" COLS="30"><?=$rs[content]?></TEXTAREA><br />
     <INPUT TYPE="submit" name="submit" value="edit"/>
 </FORM>
 <?php }?>
postEdit.php

<?php
include 'conn.php';
$query="update message set user='$_POST[user]',title='$_POST[title]',content='$_POST[content]' where id='$_POST[id]'";
mysql_query($query);
 ?>
 <?php
//页面跳转，实现方式为javascript
 $url = "list.php";
 echo "<script language='javascript' type='text/javascript'>";
 echo "window.location.href='$url'";
echo "</script>";
 ?>