php实现echo json_encode正确显示汉字

<?php
header('Content-type: text/html; charset=utf-8');
/*
function showmessage($msg = '', $redirect = '', $delay = 3){
    if($_GET['format'] == 'json'){
        $result = array('msg' => $msg, 'redirect' => $redirect, 'delay' => $delay);
        echo json_encode($result);
        exit();
    }
    include 'message.php';
    exit();
}

showmessage('helloworld','www.baidu.com',5);
*/
/*
$arr = array
       (
          'Name'=>'希亚',
          'Age'=>20
       );

$jsonencode = json_encode($arr);
echo $jsonencode;
*/
$array = array
    (
         'title'=>iconv("GB2312","UTF-8//IGNORE",'这里是中文标题'),
        'body'=>'abcd...'
    );

echo json_encode($array);

$text = "This is the Euro symbol '€'.";

echo 'Original : ', $text, PHP_EOL;
echo 'TRANSLIT : ', iconv("UTF-8", "ISO-8859-1//TRANSLIT", $text), PHP_EOL;
echo 'IGNORE   : ', iconv("UTF-8", "ISO-8859-1//IGNORE", $text), PHP_EOL;
//echo 'Plain    : ', iconv("UTF-8", "ISO-8859-1", $text), PHP_EOL;
/**************************************************************
 *
 *    使用特定function对数组中所有元素做处理
 *    @param    string    &$array        要处理的字符串
 *    @param    string    $function    要执行的函数
 *    @return boolean    $apply_to_keys_also        是否也应用到key上
 *    @access public
 *
 *************************************************************/
function arrayRecursive(&$array, $function, $apply_to_keys_also = false)
{
    static $recursive_counter = 0;
    if (++$recursive_counter > 1000) {
        die('possible deep recursion attack');
    }
    foreach ($array as $key => $value) {
        if (is_array($value)) {
            arrayRecursive($array[$key], $function, $apply_to_keys_also);
        } else {
            $array[$key] = $function($value);
        }

        if ($apply_to_keys_also && is_string($key)) {
            $new_key = $function($key);
            if ($new_key != $key) {
                $array[$new_key] = $array[$key];
                unset($array[$key]);
            }
        }
    }
    $recursive_counter--;
}

/**************************************************************
 *
 *    将数组转换为JSON字符串（兼容中文）
 *    @param    array    $array        要转换的数组
 *    @return string        转换得到的json字符串
 *    @access public
 *
 *************************************************************/
function JSON($array) {
    arrayRecursive($array, 'urlencode', true);
    $json = json_encode($array);
    return urldecode($json);
}
$array1 = array
       (
          'Name'=>'希亚',
          'Age'=>20
       );
$array = array
       (
          'Name'=>$array1,
          'Age'=>20
       );

echo JSON($array);
?>